App Notes

GC-MS based pesticide analysis utilizing a new and fast QuEChERS sample preparation procedure

Larger porous shell particles with narrow particle size distribution - used in reversed-phase U/HPLC analysis of peptides and proteins - provide increased efficiency per unit pressure drop, which can be taken advantage of by increasing peak capacity or traded in to reduce analysis time.

Isocratic GPC/SEC is a powerful tool to separate macromolecules based on their hydrodynamic volume. In case of homopolymers GPC/SEC allows the fast, precise and easy determination of the complete molar mass distribution.

Tea crops have both worldwide economic impact and widespread consumption due to their specific aroma as well as the promised health benefits, especially for green tea.

This Application Note gives advice on which sorbent to use for pumped or diffusive tube monitoring of various vapour-phase organics, and suggests parameters for conditioning and storing packed tubes.

This application note describes a polymer based-based strong anion exchange mixed-mode SPE protocol for the extraction of T3, rT3 and T4 from serum prior to LC-MS/MS analysis.

roducts containing chili or tomato are often colored to increase the attractiveness (e.g., of hot sauces, pesto, chili powder, curcuma and herb mixtures).

This Application Note shows that BenchTOF time-of-flight mass spectrometers provide a robust, high-performance and highthroughput solution for screening multiple trace-level environmental contaminants

This application note aims to demonstrate the injection of a complex, 76-component sample diluted in Dichloromethane (DCM) using hydrogen carrier gas.

Fresh ultrapure water used in all the experiments was produced from a Milli-Q® water purification system fed by an Elix system. The Milli-Q® system was equipped with online resistivity and TOC monitors. Unless otherwise specified, a 0.22 μm membrane was used at the point-of-delivery purifier (Millipak).