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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
Impact of Mobile Phase Additives on LC-MS Sensitivity, Demonstrated using Spice Cannabinoids
This study demonstrates the impact of various mobile phase modifiers on the separation; formate modifiers outperform acetate in terms of MS signals (or sensitivity) and chromatographic resolution.
Precipitation Procedures
This page describes protein precipitation as an optional step in sample preparation for 2-D electrophoresis with Cytiva products.
Biological Testing for Amphetamine and Methamphetamine Abuse
In this study, optimized methods are presented for sample preparation and chiral chromatography for the LC/MS analysis of amphetamine and methamphetamine enantiomers in urine.
LC MS Analysis of Nucleotides Effect of pH
ZIC-cHILIC is a densely bonded zwitterionic stationary phase with phosphorylcholine functional groups covalently attached to silica.
Analysis of a Bispecific Monoclonal Antibody Using Size Exclusion Chromatography and Mass Spectrometry
Bispecific antibodies are a new class of biotherapeutics where one therapeutic agent can target two different antigens. This application note demonstrates a new size exclusion chromatographic method for characterizing these new biotherapeutics by mass spectrometry.
Dispensette® S and Dispensette® S Organic Chemical Compatibility Chart
Chemical compatibility chart for all Dispensette® S and Dispensette® S Organic models.
Chiral Chromatography Frequently Asked Questions
Chiral Chromatography Frequently Asked Questions
Mixed-Mode SPE Improves Extraction of Pharmaceutical Compounds from Biological Fluids
Mixed-Mode SPE Improves Extraction of Pharmaceutical Compounds from Biological Fluids
Accurate Biological Testing for Amphetamine and Methamphetamine Abuse Using Chiral HPLC and MS Detection
Optimized sample prep and chiral chromatography methods for the LC/MS analysis of these drug enantiomers in urine
HPLC Analysis of Heroin, Cocaine, Amphetamine and MDMA on Ascentis® Express HILIC
Separation of Heroin, analytical standard, ≥98% (HPLC); Cocaine hydrochloride, analytical standard; D-Amphetamine hemisulfate salt solution, 1.0 mg/mL in methanol, analytical standard, for drug analysis; (±)-3,4-Methylenedioxymethamphetamine hydrochloride solution, analytical standard, for drug analysis, 1.0 mg/mL in methanol
HPLC Buffers
The selection of a buffer in terms of species, ionic strength and pH range is critical in reversed-phase chromatography. Learn more about high quality HPLC grade buffers and reagents for your lab chromatographic applications. Order now.
Purification of Protein A-Tagged Proteins
This page shows how to purify protein A-tagged proteins using Cytiva products.
LC/MS Analysis of Nicotine and Metabolites on Kromasil® Eternity™ C18 (Analyte Set 1)
Separation of (+)-Anabasine hydrochloride solution, 1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material; S(−)-Nicotine solution, 1.0 mg/mL in methanol, ampule of 1 mL, certified reference material; (S)-N-Nitrosoanabasine (NAB) solution, 1.0 mg/mL in methanol, ampule
Non-volatile and Volatile Buffer Systems
This page shows volatile and non-volatile buffer suggestions for anion and cation exchange chromatography.
Performance of Whatman™ 40 and 41 Quantitative Ashless Filter Paper Grades in Mining Quality Control Applications
This page shows the performance of Whatman™ Grade 40 and Grade 41 quantitative ashless filter paper in three metal content tests, high molybdenum, lead, and zinc for the mining industry.
Analytical Method: Tartaric Acid in Water
Photometric determination with Ammonium vanadate
USP HPLC Analysis of L-Methionine on Ascentis® Express OH5
Separation of L-Methionine, Pharmaceutical Secondary Standard; Certified Reference Material
UHPLC/MS Analysis of Diazepam and Metabolites on Titan™ C18, Comparison of Flow Rate and Column Length
Separation of Oxazepam; Desmethyldiazepam, analytical standard; Temazepam, analytical standard; Diazepam
HPLC Analysis of Vitamin D2 and Vitamin D3 on Ascentis® C18
Separation of Ergocalciferol (D2), analytical standard; Cholecalciferol (D3), analytical standard
Protocol for Anti Ago-RNA Immunoprecipitation from Mammalian Cells Using the RIP Kit
Procedure and protocol for Anti Ago-RNA Immunoprecipitation from mammalian cells using the RIP kit
Ionic Liquids Properties & Applications
Ionic Liquids Properties & Applications
Performing a Separation with IgG Sepharose 6 Fast Flow
Perform a separation with IgG Sepharose 6 Fast Flow from Cytiva, an Affinity Chromatography product for purification of recombinant fusion proteins containing a protein A tail.
Sample Preparation in Ion Exchange Chromatography
This page clarifies sample preparation, buffer exchange and desalting, removal of lipoproteins, phenol red, and low molecular weight contaminants in Ion exchange chromatography.
Sample Preparation for Chromatographic Purification
This page discusses various aspects of sample preparation for chromatographic purification.
Salt Selection and Buffer Preparation
The correct choice of salt and salt concentration are the most important parameters that influence capacity and final selectivity. The objective is to optimize conditions to achieve the required selectivity to bind the target protein(s) and ensure that the majority
Brilliant Blue G – Colloidal Concentrate Protocol
Brilliant Blue G-Colloidal Concentrate has been designed for post-electrophoresis staining of proteins in IEF, PAGE, and SDS-PAGE gels. Fixing the proteins prior to staining is recommended for maximum sensitivity.
Murashige and Skoog Plant Cell Culture Media Formulations
Basal Salts Mixtures, Media including Organics
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