Mass spectrometry

Applied Filters:

facet applications:Mass spectrometry

facet content type:Technical Article

Showing 1-30 of 64 results

LC/MS/MS Method for Determination of Glyphosate, AMPA, and Glufosinate in Cereals

Glyphosate and related compounds are measured in oatmeal and infant cereal using ion-exchange polymer-based particles for HPLC and SPE. Low level detection was obtained.

Bioanalysis with SPME

Biocompatible SPME devices employ C18 bonded porous silica sorbent particles, in a binder which resists fouling by biological matrix components

Rapid Determination of Protein Binding Affinity Using Solid Phase Microextraction

Accurate protein binding affinities were measured using bioSPME more rapidly than membrane dialysis (RED) techniques. Binding affinities correlated to the reference values.

Validation of RNAi Knockdown Using Multiple Reaction Monitoring and Protein-AQUA

This discussion will highlight some of these methodologies, namely, the use of Multiple Reaction Monitoring (MRM) and Protein-AQUA.

Method Optimization for LC-MS Analysis of Vitamin D Metabolite Critical Pairs in Serum

Novel sample prep technique coupled with the unique selectivity of the Ascentis Express F5 column enables a fast and simplified bioanalytical method for associated vitamin D metabolites.

SPME in the Analysis of Illicit Drugs

SPME is used in the analysis of amphetamine compounds by doing pre-extraction derivatization, and is also used in general determinations of other drugs of abuse.

HybridSPE-Phospholipid Technology

This Sigma-Aldrich article discusses how the HybridSPE-Phospholipid Technology works and how the phospholipids are removed.

Method Optimization for LC-MS Analysis of Vitamin D Metabolite Critical Pairs in Serum

Using HybridSPE-Phospholipid, Ascentis Express, and Other LC-MS Workflow Components

Quick, Sensitive LC/MS/MS Analysis of Aflatoxins in Cannabis

Analyte recovery values from spiked cannabis extracts ranged from 102 to 127% with RSD below 12% for 3 replicates. Excellent recovery values were even observed for Aflatoxins B2 and G2 which were spiked at a low level of 6.1 ppb.

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.

Resolving by Mass

Determination of Stevioside and Rebaudioside A in Stevia leaves, beverages and food additives using HPTLC-MS

HPTLC-MS was used to analyze stevioside and rebaudioside in artificial sweeteners, stevia plants, cola and isotonic drinks with a minimum of sample preparation.

Mass Spectrometry

What is Mass Spectrometry or MS? What is it used for and how does it work? Read this detailed article with diagrams and example graphs to understand how to use mass spec in your research.

Characterization of Stable Isotope Caffeine as Reference Material for Isotope Dilution Mass Spectrometry

This technique is based on the direct proportionality of mass fraction ratio and signal intensity ratio of the natural isotope and the C-13 labeled caffeine.

Comparison of QuEChERS Products for the Extraction of Planar Pesticides from Spinach

Supel™ QuE Verde combines a novel carbon with zirconia coated silica (Z-Sep+) to provide an optimum balance between planar pesticide recovery and color removal.

Ultrapure Water for LC MS Biomedical Analyses

This study assesses the suitability of ultrapure water from a Milli-Q® water system for sensitive LC-MS analyses of hormones.

Analysis of Pesticides in Baby Food by Solid Phase Microextraction (SPME) Using a New Overcoated Fiber

A direct immersion SPME method using a new overcoated SPME fiber was developed for the extraction of pesticides from pureed prune baby food.

Sample Cleanliness Using BioSPME

Learn about Supel™ BioSPME C18 96-pin tool to prepare a clean sample with minimal matrix effects for an LC-MS/MS analysis from human plasma and its comparison with acetonitrile-based precipitation.

The Extraction of Amphetamine and Related Drugs using Molecularly Imprinted Polymer SPE

New Certified Reference Materials for Proteins

CRMs of milk proteins aid accurate testing for infant formula, ensuring compliance and quality control.

LC-MS Analysis of Warfarin™ in Plasma Samples

LC-MS analysis of Warfarin demonstrates its potential in clinical laboratories for accurate plasma measurements.

Effect of Container Materials on Milk Off-Flavors

HS-SPME with Carboxen®/PDMS coated Nitinol fiber allows low MW analyte detection in light-exposed milk plastics.

Workflow for Pesticide Analysis in Cannabis

Complete workflow for cannabis flower pesticide testing using LC-MS/MS and GC-MS/MS ensures product safety.

Ion Pairing for Phosphonate Compound Analysis

Phosphonates analysis challenges due to their polar nature and lack of UV active chromophores in antiviral drugs.

Protein AQUA™ Applications

Protein AQUA™ technique quantifies protein expression levels and phosphorylated peptides for various research applications.

Synthesis & HILIC/MS Analysis of Acylcarnitines

HILIC mode chromatography with Ascentis® Express OH5 resolves acyl-L-carnitines, aiding in metabolite analysis.

Pesticide Analysis in Turmeric by LC/MS/MS & GC/MS/MS

Dual-layer cartridge achieves efficient SPE clean-up for challenging pesticide residue testing in turmeric and spices.

Fast Vitamin D Metabolite Analysis

Vitamin D deficiency affects bone health, highlighting its vital role in calcium absorption and bone growth.

Analysis of California Cannabis List of Pesticides, Mycotoxins, and Pyrethrins Using Ascentis® Express Biphenyl Column

Cannabis testing regulations include analysis of purity, potency, and contaminants. Learn more about analysis of cannabis for pesticides, mycotoxins, and pyrethrins registered in California by LC-MS/MS and GC-MS/MS Using Ascentis® Express Biphenyl and SLB®-5ms Columns

The Derivatization and Analysis of Amino Acids by GC-MS

Page 1 of 3