| CAS Number | 77-92-9 |
|---|---|
| Molecular Formula | C6H8O7 |
| Molecular Weight | 192.123 |
| InChI Key | KRKNYBCHXYNGOX-UHFFFAOYSA-N |
| LogP | -1.64 |
| Synonyms |
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Applications:
HPLC Method for Analysis of Citric Acid and Potassium Bromide on Newcrom BH Column
2022-08-08
| Separation type: Liquid Chromatography Mixed-mode | ||||||||||||||
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| High Performance Liquid Chromatography (HPLC) Method for Analysis of Citric Acid and Potassium Bromide
Citric Acid is a naturally ocurring organic acid found in citrus fruits; it is also an intermediate in the citric acid cycle of aerobic organisms. It is used industrially as an acidity regulator, flavoring, detergent, and more than 2 million tons are produced annually. Potassium Bromide used to be a popular anticonvulsant and sedative, and is now mainly used as an antiepileptic medication for dogs. Citric acid and Potassium Bromide can be retained, separated, and analyzed on a mixed-mode Newcrom BH column with a mobile phase consisting of water, Acetonitrile (MeCN), and Trifluoroacetic acid (TFA). This analytical method can be UV detected at 210 nm with high resolution and peak symmetry. This method is also compatible with Mass Spectrometry (MS), ELSD, and CAD. The Citric acid was detected via negative Electrospray Ionization (ESI-) at an m/z of 191. |
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Application Analytes:
BromideCitric Acid
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Newcrom BH
The Newcrom columns are a family of reverse phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 columns are standard reverse phase columns with octyldecyl silane chains (C18) attached to porous silica. We have also designed a line of Newcrom R1 columns with a new outer design. This column and corresponding adapter entirely eliminate the need for any high-pressure fittings or tubing as well as minimizing all possible dead volumes. Furthermore, if a leak ever occurs in the high-pressure column inlet, the mobile phase is contained within the column adapter (no external leakage).
Select optionsHPLC Separation of Tartaric Acid and Citric Acids on Newcrom BH Column
2021-03-22
| Column | Newcrom BH, 4.6×150 mm, 3 µm, 100A |
| Mobile Phase | H2O |
| Buffer | H3PO4 |
| Flow Rate | 1.0 ml/min |
| Detection | UV 200 nm |
| Class of Compounds | Acid, Hydrophilic |
| Analyzing Compounds | Tartaric Acid, Citric Acid |
Application Analytes:
Citric AcidTartaric Acid
dl-Tartaric acid
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Newcrom BH
The Newcrom columns are a family of reverse phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 columns are standard reverse phase columns with octyldecyl silane chains (C18) attached to porous silica. We have also designed a line of Newcrom R1 columns with a new outer design. This column and corresponding adapter entirely eliminate the need for any high-pressure fittings or tubing as well as minimizing all possible dead volumes. Furthermore, if a leak ever occurs in the high-pressure column inlet, the mobile phase is contained within the column adapter (no external leakage).
Select optionsHPLC Determination of Citric Acid on Newcrom B Column
2019-10-24
| Column | Newcrom B, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O – 5/95% |
| Buffer | Formic Acid – 0.5% |
| Flow Rate | 1.0 ml/min |
| Detection | CAD (Corona) MS- compatible mobile phase |
| Class of Compounds | Acid, Hydrophilic, Ionizable |
| Analyzing Compounds | Citric Acid |
Application Analytes:
Citric Acid
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Newcrom B
The Newcrom columns are a family of reverse phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 columns are standard reverse phase columns with octyldecyl silane chains (C18) attached to porous silica. We have also designed a line of Newcrom R1 columns with a new outer design. This column and corresponding adapter entirely eliminate the need for any high-pressure fittings or tubing as well as minimizing all possible dead volumes. Furthermore, if a leak ever occurs in the high-pressure column inlet, the mobile phase is contained within the column adapter (no external leakage).
Select optionsHPLC Separation of Small Organic Acids on Newcrom B Column
2019-10-22
| Column | Newcrom B, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O – 5/95% |
| Buffer | AmAc pH 5.0, Formic Acid |
| Flow Rate | 1.0 ml/min |
| Detection | CAD (Corona) MS- compatible mobile phase |
| Class of Compounds | Acid, Hydrophilic, Ionizable |
| Analyzing Compounds | Glycolic acid, Succinic Acid, Methylmalonic acid, Malic Acid, Maleic Acid, Citric Acid, Tartaric Acid, Fumaric Acid, Malonic Acid |
Application Analytes:
Citric AcidFumaric Acid
Gluconic acid
Glycolic acid sodium salt
Maleic Acid
Malic Acid
Malonic Acid
Methylmalonic Acid
Succinic Acid
Tartaric Acid
dl-Tartaric acid
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Newcrom B
The Newcrom columns are a family of reverse phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 columns are standard reverse phase columns with octyldecyl silane chains (C18) attached to porous silica. We have also designed a line of Newcrom R1 columns with a new outer design. This column and corresponding adapter entirely eliminate the need for any high-pressure fittings or tubing as well as minimizing all possible dead volumes. Furthermore, if a leak ever occurs in the high-pressure column inlet, the mobile phase is contained within the column adapter (no external leakage).
Select optionsSeparation of Compounds in TCA Cycle on Primesep D Column
2013-07-03
The citric acid cycle (tricarboxylic acid cycle, Krebs cycle) is a key process in the metabolic pathway by which all aerobic organisms generate energy. Compounds generated during TCA are hydrophilic, acidic compounds. Some of the hydrophilic acids are very strong while others are relatively weaker. All compounds have very low hydrophobicity and do not retain by the reversed-phase mechanism on the C18 or C8 HPLC columns. Citric acid and related products were separated in reversed-phase, anion-exchange mode on the Primesep D mixed-mode column. All hydrophilic, acidic compounds are well separated and demonstrate good shape. This robust method can be used for analysis of components of the TCA cycle and other highly hydrophilic compounds. This method is fully compatible with LC/MS and prep chromatography.
| Column | Primesep D, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O |
| Buffer | AmFm, pH 3.0 |
| Flow Rate | 1.0 ml/min |
| Detection | ELSD |
| Class of Compounds |
Acid, Hydrophilic, Ionizable |
| Analyzing Compounds | Sodium, Succinic acid, Malic acid, Isocitric acid, Citric acid, Fumaric acid, Maleic acid |
Application Analytes:
Citric AcidFumaric Acid
Isocitric Acid
Maleic Acid
Malic Acid
Sodium
Succinic Acid
Application Detection:
ELSD/MS Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Primesep D
The Primesep family of mixed-mode columns offer a wide variety of stationary phases with an unprecedented selectivity in the separation of a broad array of chemical compounds and in multiple applications. Corresponding Primesep guard columns are available with all stationary phases and do not require holders. SIELC offers a method development service which is available for all customers. Ask about our special custom LC-phases tailored for specific separations.
Select optionsAnalysis of Compounds of TCA Cycle on SHARC 1 Column
2013-07-02
This is an alternative approach for the separation of the TCA cycle intermediates that was developed using novel hydrogen-bonding HPLC column. The organic nature of the mobile phase helps obtain a highly sensitive LC/MS compatible method.
Application Analytes:
Citric AcidFumaric Acid
Isocitric Acid
Maleic Acid
Malic Acid
Succinic Acid
Application Detection:
ELSD/MS Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
SHARC 1
The SHARC™ family of innovative columns are are the first commercially available columns with separation based primarily on hydrogen bonding. SHARC stands for Specific Hydrogen-bond Adsorption Resolution Column. Hydrogen bonding is an interaction (attraction) of bound hydrogen atom to the molecules with electronegative atoms such as oxygen, nitrogen, and fluorine.
Select optionsHPLC Separation of Barium Cation in the Presence of Citric Acid, Sucrose and Tween 80
2011-07-08
Barium ion and citric acid are analyzed in the presence of sucrose and Tween 80 on Obelisc N HILIC mixed-mode column. Both compounds are retained in ion-exchange mode and HILIC is not employed with this method. Obelisc N HPLC column has basic and acidic ion-exchange groups separated by long hydrophilic chain. Presence of that long chain allows both cation- and anion-exchange mechanisms to exist simultaneously. Obelisc N column can be used for analysis of cation and anions in HILIC/ion-exchange mode and in ion-exchange mode. Analytes can be monitored by ELSD/CAD and LC/MS.
| Column | Obelisc N, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN |
| Buffer | AmAc pH 4.0 |
| Flow Rate | 1.0 ml/min |
| Detection | ELSD |
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| Class of Compounds |
Acid, Ion, Hydrophobic, Ionizable |
| Analyzing Compounds | Barium ion, Citric acid, Sucrose, Tween 80 |
Application Analytes:
Citric AcidSucrose
Tween 80
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Obelisc N
SIELC has developed the mixed-mode Obelisc™ columns to be the first commercially available columns with Liquid Separation Cell technology (LiSC™). This cost effective duo can replace multiple HPLC columns such as reversed-phase (RP), AQ-type reversed-phase, polar-embedded group RP columns, normal-phase, cation-exchange, anion- exchange, ion-exclusion, and HILIC (Hydrophilic Interaction Liquid Chromatography) columns. By controlling just three orthogonal method parameters - Buffer concentration, Buffer pH, and Organic Modifier Concentration - users can adjust the column properties with pinpoint precision to separate complex mixtures.
Select optionsHPLC Analysis of Pseudoephedrine and Citric Acid on Primesep Column
2010-10-14
Pseudoephedrine is a drug used in cough and cold compositions. One of the preservatives in solutions of pseudoephedrine is citric acid. Both compounds are hydrophilic in nature, with pseudoephedrine being a basic compound and citric acid an acidic compound. Separation of these two compounds is achieved on a Primesep N column. Compounds are separated by combination of HILIC, cation-exchange and anion-exclusion mechanisms. Pseudoephedrine and citric acid are monitored by UV. This HPLC method can be adopted as generic approach for analysis of pseudoephedrine and other hydrophilic drugs and preservatives in mixtures.
Application Analytes:
Citric AcidPseudoephedrine (PSE)
Application Detection:
UV Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Primesep C
The Primesep family of mixed-mode columns offer a wide variety of stationary phases with an unprecedented selectivity in the separation of a broad array of chemical compounds and in multiple applications. Corresponding Primesep guard columns are available with all stationary phases and do not require holders. SIELC offers a method development service which is available for all customers. Ask about our special custom LC-phases tailored for specific separations.
Select options
Primesep N
The Primesep family of mixed-mode columns offer a wide variety of stationary phases with an unprecedented selectivity in the separation of a broad array of chemical compounds and in multiple applications. Corresponding Primesep guard columns are available with all stationary phases and do not require holders. SIELC offers a method development service which is available for all customers. Ask about our special custom LC-phases tailored for specific separations.
Select optionsHPLC Separation of Citric Acid and Phosphate Ions in HILIC Chromatography
2009-07-16
Citric acid and phosphate ion are separated by HILIC on Primesep N HILIC HPLC column. Both compounds are very hydrophilic. Citric acid and phosphate ions are well separated with excellent peak shape. Method can be used for quantitation of citrate and phosphate in various formulations. Because of the lack of UV activity, separation can be monitored by LC/MS, ELSD or Corona CAD. Method can be used for other hydrophilic organic and inorganic acids.
Application Analytes:
Citric AcidPhosphate
Application Detection:
ELSD/MS Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Primesep N
The Primesep family of mixed-mode columns offer a wide variety of stationary phases with an unprecedented selectivity in the separation of a broad array of chemical compounds and in multiple applications. Corresponding Primesep guard columns are available with all stationary phases and do not require holders. SIELC offers a method development service which is available for all customers. Ask about our special custom LC-phases tailored for specific separations.
Select optionsHPLC Analysis of Basic Drugs and Acidic Counter-Ions by Mixed-Mode Chromatography
2009-07-16
The majority of drugs in the pharmaceutical industry are administered in salt form. The presence of two counter-ions very often necessitates the use of two methods. The nature of these counterparts in drugs can be an inorganic cation and organic acid, inorganic anion and organic base, and organic cation and organic anion. Furthermore, the properties of the molecules will result in a differing stoichiometry. The task of simultaneous quantitation of counter-ions can be achieved by using mixed-mode columns. The general approach for analysis is based on properties of corresponding counter-ions. Hydrophobic basic drugs, like dextromethorphan, verapamil, trimipramine, and corresponding acidic counter-ions (chloride, chlorate, bromide, bromate, perchlorate, maleate, fumarate,tartrate, succinate, phosphate, citrate, benzosulfonate, toleuensulfonate) can be separated and quantitated in the same run on reversed-phase anion-exchange column. Basic hydrophobic drugs are retained by the reversed-phase mechanism, and counter-ions are retained by the reversed-phase and anion-exchange mechanism. Some polar counter-ions are retained only by the anion-exchange mechanism. Retention time and selectivity of HPLC separation of drugs and counter-ions can be achieved by changing the amount of acetonitrile and the amount of ions in the mobile phase. The detection technique depends on the properties of the counter-ions. In case of low or no UV activity, ELSD can be employed if the counter-ion forms a non-volatile salt with the mobile phase additive (ammonium formate). This HPLC method can be used for simultaneous quantitation of other basic drugs and counter-ions. The presence of two mechanisms of retention allows control over retention times of drug and counter-ion independently, and even allows a change of order of elution when necessary.
| Column | Primesep D , 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O |
| Buffer | AmFm pH 3.0 |
| Flow Rate | 1.0 ml/min |
| Detection | ELSD, UV 270 |
| Class of Compounds | Ions, Hydrophilic, Hydrophobic, Base, Acids, Ionizable |
| Analyzing Compounds | Sodium Chloride, Sodium chloride, Sodium Chlorate, Sodium bromide, Sodium bromate, Perchloric Acid, Maleic Acid, Fumaric Acid, Tartaric Acid, Succinic Acid, Phosphoric Acid, Citric acid, Benzosulfonic acid, Dextromethorphan, Verapamil, Trimipramine |
Application Analytes:
Benzenesulfonic AcidBromide
Chlorate
Chloride
Citric Acid
Dextromethorphan
Fumaric Acid
Maleic Acid
Organic Acids
Perchlorate
Phosphoric Acid
Pyrilamine
Succinic Acid
Tartaric Acid
Verapamil
p-Toluenesulfonic Acid (PTSA)
Application Detection:
UV DetectionELSD/MS Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Primesep D
The Primesep family of mixed-mode columns offer a wide variety of stationary phases with an unprecedented selectivity in the separation of a broad array of chemical compounds and in multiple applications. Corresponding Primesep guard columns are available with all stationary phases and do not require holders. SIELC offers a method development service which is available for all customers. Ask about our special custom LC-phases tailored for specific separations.
Select optionsSeparation of Alginic Acid and Related Products
2008-08-22
Alginate is used in various pharmaceutical preparations. Chemically, it is a linear copolymer with homopolymeric blocks of (1-4)-linked ?-D-mannuronate (M) and its C-5 epimer ?-L-guluronate (G) residues, respectively, covalently linked together in different sequences or blocks. Alginic acid can be separated from benzoate, citric acid and saccharin by mixed-mode chromatography on Primesep C HPLC column. This method can be used to quantitate alginic acid, citric acid or saccharin in complex mixtures. Various detection technique can be used (UV, ELSD, LC/MS), based on mobile phase selection.
| Column | Primesep C, 4.6×150 mm, 5 µm, 100A |
| Mobile Phase | MeCN/H2O |
| Buffer | Na2HPO4 |
| Flow Rate | 0.25 ml/min |
| Detection | UV, 210 nm |
| Class of Compounds |
Acid, Hydrophilic, Ionizable |
| Analyzing Compounds | Alginic acid, Citric acid, Benzoic acid, Saccharin |
Application Analytes:
Alginic AcidBenzoic Acid
Citric Acid
Saccharin
Application Detection:
UV Detection
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.
Primesep C
The Primesep family of mixed-mode columns offer a wide variety of stationary phases with an unprecedented selectivity in the separation of a broad array of chemical compounds and in multiple applications. Corresponding Primesep guard columns are available with all stationary phases and do not require holders. SIELC offers a method development service which is available for all customers. Ask about our special custom LC-phases tailored for specific separations.
Select options