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Thin Layer Chromatography Identification Test for Etodolac following European Pharmacopeia Monograph on Silica Gel G F 254 Plates

Etodolac is a nonsteroidal anti-inflammatory drug (NSAID). Etodolac is a white crystalline compound, a racemic mixture of [+]S and [-]R-enantiomers insoluble in water but soluble in alcohols, chloroform, dimethyl sulfoxide, and aqueous polyethylene glycol. This application note uses TLC Silica gel 6...

UHPLC Analysis of Benzoyl peroxide from Neutrogena® Rapid Clear® stubborn acne spot gel on Purospher® STAR RP-18e Hibar® HR

sample preparation 1 gram of Neutrogena® Rapid Clear® Stubborn Acne Spot Gel (10% benzoyl peroxide). (See "Sample Prep" at Description Text.) column Purospher STAR RP-18e Hibar HR, 10 cm x 2.1 mm I.D., 2.0 μm, 120Ã… (1.50648.0001) column temp. 30 °C ambient mobile phase [A] 5 mM Potassium Phosphate,...

UHPLC Analysis of Benzoyl peroxide from Neutrogena® Rapid Clear® stubborn acne spot gel on Purospher® STAR RP-18e Hibar® HR

sample preparation 1 gram of Neutrogena® Rapid Clear® Stubborn Acne Spot Gel (10% benzoyl peroxide). (See "Sample Prep" at Description Text.) column Purospher STAR RP-18e Hibar HR, 10 cm x 2.1 mm I.D., 2.0 μm, 120Å (1.50648.0001) mobile phase [A] 5 mM Potassium Phosphate, pH 3.0 with phosphoric acid...

Fast UHPLC Analysis of SILu™ Lite SigmaMAb Universal Antibody Standard IdeS Fragments on BIOshell™ A400 Protein C4

sample preparation Deglycosylation of the monoclonal antibody standard was per protocol for an immobilized EndoS2 glycosidase (Genovis Inc). (Proteolysis was per protocol for an immobilized IdeS potease (Genovis Inc). Reduction following proteolysis was by 10 mM dithiobutylamine in neutral buffer.) ...

LC/MS (TOF) Analysis of Warfarin™ Enantiomers in Plasma on Astec® CHIROBIOTIC® V after SPE using HybridSPE®-Phospholipid

sample/matrix Rat plasma stabilized with K2EDTA was acquired from Lampire Biological Laboratories, (Pipersville PA). (Plasma was spiked directly from stock standard to a level of 100 ng/mL in 3:1 (plasma:1% formic acid acetonitrile).) SPE tube/cartridge Pk1 50 mg/96-Well HybridSPE-Phospholipid Plate...

High-Resolution U/HPLC Separation of Peptides BIOshell™ A160 Peptide Phenyl-Hexyl

High efficiency separation of peptides with orthogonal selectivity to alkyl-bonded phases due to rigid aromatic ring (shape selectivity). The BIOshell™ A160 Peptide Phenyl-Hexyl bonded phase is based on fused-core particles. BIOshell™ A160 Peptide Phenyl-Hexyl provides a stable, reversed phase packi...

HPLC Analysis of Amlodipine Besylate on Purospher® STAR RP-18 endcapped

sample preparation Dissolve appropriate amount of standard in mobile phase to obtain 50 μg/mL (50 ppm). column Purospher® STAR RP-18 endcapped 250 x 4.6 mm (1.51456.0001) column temp. 30 °C mobile phase [A] methanol; [B] acetonitrile; [C] 0.7% triethylamine aqueous solution ; (35:15:50, A:B:C) flow ...

Application Notes: Reflectometry – Ascorbic Acid in Vitamin Tablets

Reagents: Cat. No. 116981 Reflectoquant® Ascorbic Acid Test Cat. No. 117246 Reflectometer RQflex® 20 Cat. No. 100495 Oxalic acid dihydrate This application note pertains to RQflex®20 and all discontinued instruments (RQflex® 10, RQflex® plus) Sample preparation: Dissolve tablet in 1 l oxalic acid di...

LC/MS Analysis of Metformin and Related Impurities on SeQuant® ZIC-HILIC

column SeQuant® ZIC-cHILIC, PEEK, 150 x 4.6 mm, 3 μm, 100 Ã… (1.50661.0001) column temp. 30 °C mobile phase [A] acetonitrile; [B] 4.62 g of ammonium acetate in 1000 ml water (60 mM). [A] acetonitrile; [B] 4.62 g of ammonium acetate in 1000 ml water (60 mM). Adjust buffer to pH 5 using glacial acetic...

USP Dissolution Testing Method (HPLC) for Folic Acid Tablets using a Monolith Column and UV detection

Related Products • Analytical Standards • Analytical Reagents • Technical Compendium • Applications Search • HPLC Folic acid or folate is classified as a B vitamin (B9). Folic acid is synthetically produced, and used in fortified foods and supplements. Folate is converted by humans to dihydrofolate ...

TLC Silica Gel 60 G Plates with Gypsum

The TLC silica gel 60 G plates consist of silica gel having a pore size of 60 Å as the adsorption formulation, with gypsum as a binder material. Gypsum is incorporated in the silica gel in the form of calcium sulfate hemihydrate (1/2CaSO4). Our highly robust TLC silica gel plates with gypsum as bind...

LC/MS/MS Analysis of Steroid Hormones in Plasma on Ascentis® Express C18 after Sample Prep using HybridSPE®-Phospholipid

SPE tube/cartridge HybridSPE®-Phospholipid, 96-well plate, 50 mg/well (575656-U) sample addition To each well add 100 µL of plasma followed by 300 µL of precipitation solvent (1% formic acid or 0.5% citric acid in acetonitrile). (Agitate via vortex for 4 minute, place on vacuum manifold and apply 10...

HPLC Analysis of Breviscapine tablets on Purospher®STAR RP-18 endcapped)

sample preparation Take 10 tablets, weigh precisely, grind to powder. Weight appropriate amount (roughly contained 30mg Breviscapine) to a 50 mL volumetric flask, add methanol into, sonicate for 30 minutes (250W, 40kHZ). Cool down, add methanol to volume. Shake well, filtrate. Take 1 mL filtrate to ...

TLC Silica Gel 60G Plates

Fully Compliant with International Pharmacopoeia Traditionally, TLC monographs in pharmacopoeia refer to products using silica G, containing gypsum as binder, or silica H with no foreign binder. There are about 200 monograph methods in the European Pharmacopoeia (Ph Eur) referring to these plates*. ...

LC/MS Analysis of Perindopril Erbumine on SeQuant® ZIC-HILIC

column SeQuant® ZIC-cHILIC, PEEK, 150 x 4.6 mm, 3 μm, 100 Ã… (1.5661.0001) column temp. 30 °C mobile phase [A] acetonitrile; [B]1.56 g of ammonium formate in 1000 ml water (25 mM). Adjust pH to 3.5 with formic acid; (90:10, A:B) flow rate 0.5 mL/min pressure 783 psi 54 Bar sample Dissolve 10 mg of p...

HPTLC (High-Performance Thin-Layer Chromatography) Plates

As the leading supplier of thin layer chromatography (TLC) consumables, we offer an extensive portfolio for TLC preparative TLC, and high performance TLC (HPTLC). Our high performance thin-layer chromatography (HPTLC) plates are the perfect choice for quantitative separation using instrumental HPTLC...

Determination of Rutin in Anti-Aging Skin Cream Formulations Using Chromolith® HighResolution RP-18 Endcapped Column and UV Detection

Rutin, also known as rutoside, quercetin-3-O-rutinoside, or sophorin, is a quercetin glycoside found in various plants, including buckwheat and asparagus. The chemical structure contain units of Rutoside and the disaccharide rutinose (α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranose). Rutin is believed t...

HPLC Analysis of Pentylbenzene and o-Terphenyl on Ascentis® Express Biphenyl

column Ascentis Express Biphenyl, 10cm x 2.1mm, 2.7 µm particles (64065-U) mobile phase [A]:water [B]: methanol; (20:80 A:B) flow rate 0.5 mL/min pressure 5400 psi (372 bar) sample Toluene(500 µg/mL) n-pentylbenzene (500 µg/mL), o-Terphenylene (50 µg/mL). Prepared in 50:50 A:B injection 1 µL detecto...

LC/MS Analysis of Cefadroxil on SeQuant® ZIC-HILIC

column SeQuant ZIC-cHILIC, PEEK, 150 x 4.6 mm, 3 μm, 100 Ã… (1.50661.0001) column temp. 30 °C mobile phase [A] acetonitrile; [B] 1.26 g of ammonium acetate in 1000 ml water (200 mM). Adjust to pH 4.5 using formic acid ; (90:10, A:B) flow rate 1.5 mL/min pressure 2450 psi (175 Bar) sample 100 ppm cef...

Application Notes: Reflectometry – Total Sugar (Glucose and Fructose) in Fruit Juices

Reagents: Cat. No. 116136 Reflectoquant® Total Sugar Test Cat. No. 117246 Reflectometer RQflex® 20 This application note pertains to RQflex® 20 and all discontinued instruments (RQflex® 10, RQflex® plus) Sample preparation: Dilute the fruit-juice sample 1+249 with distilled water (dilution factor 25...

Thin-Layer Chromatography (TLC) Techniques

Besides the manual method of classical Thin-Layer Chromatography, the technique can be enhanced to high-performance thin-layer chromatography (HPTLC) for faster and more accurate separations. Alternatively, TLC can be easily up-scaled to preparative-layer chromatography (PLC). Furthermore, depending...

Application Notes: Reflectometry – Potassium in Plant Sap

Reagents: Cat. No. 116992 Reflectoquant® Potassium Test Cat. No. 117246 Reflectometer RQflex® 20 This application note pertains to RQflex® 20 and all discontinued instruments (RQflex® 10, RQflex® plus) Sample preparation: Use an appropriate method to extract the sap from the plant to be analyzed (e....

Application Notes: Reflectometry – Ascorbic Acid in Cider

Reagents: Cat. No. 116981 Reflectoquant® Ascorbic Acid Test Cat. No. 117246 Reflectometer RQflex® 20 Cat. No. 109286 Sulfuric acid 40 % This application note pertains to RQflex®20 and all discontinued instruments (RQflex® 10, RQflex® plus) Sample preparation: Adjust cider to pH 0.5 - 1 using sulfuri...

UHPLC Analysis of Aflatoxins on Titan™ C18 with TFA Derivatization and Fluoresence Detection

sample preparation 200 µL of standard solution of aflatoxins was mixed with 300 µL of derivatization solution (7:1:2 water:acetic acid:trifluoroacetic acid). (The mixture was kept at 65 °C for 25 minutes, then cooled down to room temperature. 550 µL of water was added.) column Titan C18, 10 cm x 2.1...

HPLC Analysis of Amlodipine Besylate Tablets on Purospher® STAR RP-18 endcapped

sample preparation Take 10 tablets into a 50-mL volumetric flask, add into 5mL mobile phase, sonicate for 30 minutes. Cool down solution to room temperature, add mobile phase to volume. (Shake well, filter, dilute with mobile phase to a concentration of 50 μg/mL (50 ppm).) column Purospher® STAR RP...

Application Notes: Reflectometry – Glucose in Potatoes

Reagents Catalog No. 116720 Reflectoquant® Glucose Test Catalog No. 117246 Reflectometer RQflex® 20 This application note pertains to RQflex® 20 and all discontinued instruments (RQflex® 10, RQflex® plus) Sample preparation Use an appropriate method to squeeze the sap out of the potato (e.g. a juice...

Determination of Dehydroacetic acid in Bread using HPLC with UV detection following the Chinese National Standard (GB) Method

Dehydroacetic acid is an organic compound which has several industrial applications. It can be used as a plasticizer in synthetic resins; as a fungicide or bactericide; but also as a food preservative (E265). This application focus on testing Dehydroacetic acid in bread using a Discovery® HS C18 HPL...

HPLC Analysis of Humira on BIOshell™ A400 Protein C4 Column

column BIOshell A400 Protein C4, 10 cm x 2.1 mm, 3.4 µm particles (66825-U) column temp. 75 °C mobile phase [A] 80:20, (water, 0.1% TFA): (acetonitrile, 0.1% TFA); [B] 50:50, (water, 0.1% TFA):(acetonitrile, 0.1% TFA). gradient 45 to 57% B in 12 min flow rate 0.2 mL/min pressure 2450 psi (for Compet...

GC Analysis of PCBs in Transformer Oil on a 5%Phenyl Column after SPE using Supelclean™ Sulfoxide

sample preparation SPE (Solid Phase Extraction) extraction process Sample Pre-treatment: paraffin oil was spiked with a Kanechlor PCB mix at the total levels of 3.7 ppm (mg/kg) and diluted with hexane (1:1 v/v). (Commercial insulation oil (Japan Industrial Standard JIS C2320-1999, insulating oil, Cl...

Application Notes: Reflectometry – Phosphate in Sugar Cane and Sugar Cane Juice

Reagents Catalog No. 116978 Reflectoquant® Phosphate Test Catalog No. 117246 Reflectometer RQflex® 20 Folded filter This application note pertains to RQflex® 20 and all discontinued instruments (RQflex® 10, RQflex® plus) Sample preparation A) Cold water extraction: Homogenize pith of sugar cane in a...