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HPLC Analysis of Aspirin and Salicylic Acid on Ascentis® Express RP-Amide
Separation of Acetylsalicylic acid, analytical standard; Salicylic acid, BioXtra, ≥99.0%
LC/MS Analysis of Lactic Acid Enantiomers in Urine on Astec® CHIROBIOTIC® R
Separation of L-(+)-Lactic acid, analytical standard; D-(−)-Lactic acid, 93-107%
HPLC Analysis of Organic Acids Commonly Found in Wine and Beer on TSKgel® OApak-P and OApak-A
Separation of Pyruvic acid, United States Pharmacopeia (USP) Reference Standard; Tartaric acid, United States Pharmacopeia (USP) Reference Standard; Citric acid, United States Pharmacopeia (USP) Reference Standard; Malic acid, United States Pharmacopeia (USP) Reference Standard; L-Pyroglutamic acid, ≥99.0% (T); Lactic acid
HPLC Analysis of Benzoic Acid and Related Compounds on Ascentis® RP-Amide
Separation of 4-Hydroxybenzoic acid; Acetylsalicylic acid; Benzoic acid; Salicylic acid; Ethyl 4-hydroxybenzoate
Analysis of Active Cannabis Compounds in Edible Food Products: Gummy Bears and Brownies
Potency testing in marijuana-infused edibles is an important problem that analytical labs are facing due to the complexity of the involved matrices. Concentration of active ingredients in these edibles can range from a few parts per million to 3.5 parts
Analysis of Melamine in Milk
Analysis of Melamine in Milk
HPLC Analysis of Dopamine and Related Compounds on Discovery® HS
Protocol for HPLC Analysis of Dopamine and Related Compounds on Discovery® HS
LC/MS Analysis of L-Methionine Sulfoximine, Sulfone and Sulfoxide on Ascentis® Express HILIC
Separation of L-Methionine sulfone; L-Methionine sulfoximine; L-Methionine sulfoxide
USP Dissolution Testing Method (HPLC) for Folic Acid Tablets Using a Monolith Column and UV detection
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 (dihydrofolic acid), tetrahydrofolate (tetrahydrofolic acid), and other derivatives, which have various biological
HPLC Analysis of Synthetic Food Dyes on Ascentis® Express C18
Separation of Tartrazine; Amaranth; Indigo carmine; New Coccine; Sunset Yellow FCF; Allura Red AC; Fast Green FCF; Erioglaucine disodium salt; Erythrosin B sodium salt; Phloxine B; Rose bengal
Analysis of Difficult Polar Compounds using Our Ion Pair Reagents and Supelco Ascentis HPLC Columns
Because reversed-phase HPLC is primarily dependent on hydrophobic interactions between the stationary phase and analyte, ion pairing is occasionally necessary to obtain sufficient retention of polar, ionizable compounds.
HPLC Analysis of Dehydroascorbic Acid and Ascorbic Acid (Vitamin C) on SeQuant ZIC-HILIC
HPLC Analysis of Dehydroascorbic Acid and Ascorbic Acid (Vitamin C) on SeQuant ZIC-HILIC
Analysis of Alkylphenols and Alkylphenol Ethoxylates Using new 13C-Labeled and Deuterated Internal Standards According to ISO 18857-2
Alkylphenols are starting materials for the synthesis of alkylphenol ethoxylates, which are widely used as non ionic tensides, dispersive agents in paper and leather manufacturing, emulsifiers for pesticide formulations and as auxiliary agents for drilling and flotation.
HPLC Analysis of p-Toluenesulfonic Acid (PTSA) and Pyrimethamine on SeQuant® ZIC-HILIC
Separation of p-Toluenesulfonic acid (PTSA); Pyrimethamine
HPLC Analysis of Aldehydes and Ketones as DNPH Derivatives on Ascentis® Express C18
This application demonstrates the suitability of Ascentis Express C18 for the separation of aldehyde/ketone-DNPH derivatives.
Analysis of Aflatoxin B1, B2, G1, and G2 in Corn Meal, Wheat Meal, and Raw Peanut Paste Matrices
Supel™ Tox AflaZea SPE cartridges provide exceptional cleanup of corn meal, wheat meal, and raw peanut paste, yielding high analyte recoveries and low %RSD for aflatoxin analysis.
HPLC Analysis of Fexofenadine and Related Compound B on CYCLOBOND® I 2000 Phases
The use of alternative chiral stationary phases to CYCLOBOND I 2000 SP suggested by USP, was studied for the analysis of fexofenadine and related compound B.
Using UHPLC/MS (TOF) for Detection of Drugs and Metabolites in Urine Following Optimized Enzymatic Hydrolysis Conditions
To optimize hydrolysis using β-glucuronidase, factors such as incubation time, temperature, hydrolysis pH, enzyme source, and enzyme concentration must be evaluated for each glucuronide metabolite to be analyzed.
HPLC analysis of Methyl Paraben and Organic Acids on Ascentis® Express RP-Amide
Separation of Uracil; p-Aminobenzoic acid; Acetylsalicylic acid; Dehydroacetic acid; Benzoic acid; Methyl paraben; 3-Fluorobenzoic acid
HPLC Analysis of Vitamins B1 B6 B12
HPLC Analysis of Vitamins B1, B6 and B12 using Ascentis® Express RP-Amide
HPLC Analysis of Anthocyanins in Red Wine on Ascentis® C18
-glucoside chloride; Malvidin 3-glucoside; Delphinidin 3-(6-acetylglucoside); Cyanidin 3-(6-acetylglucoside); Petunidin 3-(6-acetylglucoside); Peonidin 3-(6-acetylglucoside); Malvidin 3-(6-acetylglucoside); Malvidin 3-(6-caffeoylglucoside); Petunidin 3-(6-cumarylglucoside); Peonidin 3-(6-cumarylglucoside); Malvidin 3-(6-cumarylglucoside)
HPLC Analysis of Urea, Carbamate, Triazine, Aniline Pesticides on Discovery® C18
HPLC Analysis of Urea, Carbamate, Triazine, Aniline Pesticides on Discovery® C18
Chiral and Achiral LC-MS Analysis of Warfarin™ in Plasma Samples
his study demonstrates the analysis of Warfarin in plasma samples utilizing chiral and achiral (reversed-phase) LC-MS and effective sample prep to remove endogenous phospholipids
AOAC Method 2011.11: UHPLC/MS/MS Analysis of Vitamin D2 and Vitamin D3 on Titan™ C18
Separation of Ergocalciferol (D2), analytical standard; Cholecalciferol (D3), analytical standard
Mass Spectral Column Bleed in Nitrogen-Containing Polar-Embedded HPLC Stationary Phases
Mass Spectral Column Bleed in Nitrogen-Containing Polar-Embedded HPLC Stationary Phases
HPLC Analysis of Benzoic Acid Derivatives on Ascentis® C18
HPLC Analysis of Benzoic Acid Derivatives on Ascentis® C18
Lopinavir European Pharmacopeia HPLC Assay Method
This paper illustrates the setting up of a Lopinavir assay following European pharmacopoeia guidelines (10.2), and using a shorter column packed with smaller particles. The described assay saves valuable time and improves separation efficiency, which typically translates to better method
LC/MS Analysis of Methamphetamine Enantiomers on Astec® CHIROBIOTIC® V2 in Urine after SPE using Supel™-Select SCX
LC/MS Analysis of Methamphetamine Enantiomers on Astec® CHIROBIOTIC® V2 in Urine after SPE using Supel™-Select SCX
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