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HPLC Analysis of Fat Soluble Vitamins on Ascentis® Express RP-Amide, Acetonitrile Mobile Phase
Separation of Retinyl acetate, analytical standard; Vitamin E acetate, analytical standard; Phylloquinone (K1), analytical standard; Ergocalciferol (D2), analytical standard; Cholecalciferol (D3), analytical standard; (±)-α-Tocopherol, analytical standard; δ-Tocopherol, analytical standard; Retinol palmitate, analytical standard
Purification of Serum Peptides for MALDI Mass Spectrometry with Amicon® Ultra Centrifugal Filters
Biomarkers play an essential role in the drug discovery and development process.
Praziquantel Determination in Aquarium Water by Direct Injection of Samples Using a Monolithic Silica Column
Praziquantel Determination in Aquarium Water - Learn how the use of a Chromolith® monolithic silica column allows simplification of sample preparation.
Enrichment of Phospholipids in Biological Samples Using HybridSPE-PL
A simple method to enrich phospholipids from plasma samples, involving a HybridSPE-PPT 96-well plate that both retains phospholipids and removes precipitated proteins.
Determination of Fipronil and Fipronil Sulfone in Food Using Purospher® STAR RP-18 Endcapped Column and UV Detection
broad spectrum insecticide, egradation product, phenylpyrazole pesticide, World Health Organization (WHO), HPLC, UV, testing of Fipronil and Fipronil sulfone in Food
Reverse Phased Chromatography (RPC) in Practice
In this section the practical aspect of Reverse Phased Chromatography ( RPC) is discussed including media and column selection and eluent selection and preparation.
LC/MS/MS Analysis of Steroid Hormones in Plasma
The conversion of clinical methods to LC/MS/MS offers advantages; however, is accompanied by a few limitations, notably interference effects from the endogenous sample matrix.
Analysis of Active Cannabis Compounds (Cannabinoids) in Edible Food Products: Gummy Bears and Brownies
Rapid potency testing of marijuana-infused edibles using LC/MS on a biphenyl stationary phase detected eleven cannabinoids.
Solid Phase Extraction: Normal Phase Methodology
Retention occurs through polar interaction between the sorbent and analytes. Typical sample matrices that can be employed in normal-phase SPE include hydrocarbon or fatty oils diluted in a solvent like hexane, isooctane, chlorinated solvent, THF, diethyl ether, or ethyl acetate.
LC/MS Analysis of Aflatoxin M1 in Milk on Ascentis® Express HILIC after SPE using Supel™ Tox AflaZea, Quantifying Picogram Concentrations
Protocol for LC/MS Analysis of Aflatoxin M1 in Milk on Ascentis® Express HILIC after SPE using Supel™ Tox AflaZea, Quantifying Picogram Concentrations
LC/MS (TOF) Analysis of Illicit Bath Salts in Urine on Ascentis® Express HILIC After Solid Phase Extraction (SPE) Using Supel™-Select SCX
Separation of 3,4-Methylenedioxypyrovalerone HCl (MDPV) solution, 1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material; Buphedrone hydrochloride solution, 1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material; 3-Fluoromethcathinone hydrochloride solution
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
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
Purification or Removal of Phosphorylated Biomolecules
This page shows how to Purify or remove phosphorylated biomolecules with a TiO2 Mag Sepharose from Cytiva.
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
acrylamide in food
Acrylamide analysis has been a very hot topic since the chemical was identified in food in 2002 by researchers at the Swedish National Food Administration.
Determination of Bisphenol A in Drinking Water
A comprehensive sample preparation and analytical procedure was developed by Supelco for determining BPA in drinking water.
HPLC Analysis of the Monoclonal Antibody (mAb) Erbitux (Cetuximab) on BIOshell A400 Protein C4
HPLC Analysis of the Monoclonal Antibody (mAb) Erbitux (Cetuximab) on BIOshell™ A400 Protein C4
HPLC Analysis of Vitamins B1 B6 B12
HPLC Analysis of Vitamins B1, B6 and B12 using Ascentis® Express RP-Amide
Fast Extraction and Low Level Detection of Chloramphenicol in Shrimp
A highly selective and sensitive analytical method was developed for chloramphenicol using a QuEChERS type sample preparation approach and LC-MS/MS detection.
LC/MS/MS Analysis of Epinephrine, Metanephrine and Metabolites on Ascentis® Express OH5
LC/MS/MS Analysis of Epinephrine, Metanephrine and Metabolites on Ascentis® Express OH5
HPLC Analysis of Furans on Ascentis® Express Phenyl-Hexyl as listed in ASTM method D5837-99
Separation of 5-Hydroxymethyl-2-furaldehyde; Furfuryl alcohol; Furfural; 2-Furyl methyl ketone; 5-Methyl-2-furaldehyde
HPLC Analysis of PAHs on SUPELCOSIL™ LC-PAH
HPLC Analysis of PAHs on SUPELCOSIL™ LC-PAH
Increase Removal of Fat and Pigment from Avocado Extracts Prior to GC-MS Analysis of Pesticide and Metabolite Residues
Supelco's Z-Sep+ sorbent effectively removes fat and pigment interferences from avocado, with good pesticide recoveries; it removes more matrix than traditional PSA/C18 sorbent, and produces a lower background for GC-MS analysis.
HPLC Analysis of Atrazine Herbicides on Ascentis® Express C18
Separation of Atrazine-desethyl; Metoxuron; Hexazinone; Simazine; Cyanazine; Methabenzthiazuron; Atrazine; Monolinuron; Diuron; Isoproturon; Metobromuron; Metazachlor; Sebuthylazin; Linuron; Metolachlor
UHPLC (Isocratic) Analysis of 14 Cannabinoids on Ascentis® Express C18
Tetrahydrocannabinolic acid A solution, 1.0 mg/mL in acetonitrile, ampule of 1 mL, certified reference material; Cannabichromenic Acid (CBCA) solution, 1.0 mg/mL in acetonitrile, certified reference material, ampule of 1 mL
Identification, Assay and Organic Impurity Profiling Methods for Aripiprazole following the United States Pharmacopeia Monograph
Aripiprazole is an atypical antipsychotic and a partial dopamine agonist. It is primarily used in the treatment of schizophrenia, bipolar disorder, major depressive disorder, tic disorders, and irritability associated with autism. Aripiprazole was first approved by the U.S. Food and
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