LC/MS provides an excellent alternative to conventional LC with UV, PDA or Fluorescence detection or GC/MS to measure polar pesticides in food matrices and in the environment. Many of these pesticides are not very volatile and have to be derivatized

Recent studies suggest parabens may be carcinogenic and can cause estrogenic disrupting activity, thereby disputing the notion of low toxicity for these compounds. We present an LC/MS assay to identify several of the parabens found in hand lotion.

An expired ophthalmic solution of trimethoprim and polymyxin B sulphates was analyzed for degradants using UHPLC/SQ MS.

Here, PerkinElmer reps describe a UHPLC/SQ MS method to separate, identify, and quantify some essential water soluble vitamins without the use of ion pair reagents.

Microvolume assessment of bacterial culture growth was found to facilitate measurement of undiluted cultures. Comparison between microvolume and cuvette-based data requires the use of a conversion factor, which can be simply determined.

Michael Glavanovich receives calls with all kinds of strange requests. Once, a woman phoned to ask him if a piece of meat tossed into her yard for her dog contained poison.

Various types of synthetic colorants are used as food additives, and gradient elution is generally used to analyze them. The Nexera UHPLC (Shimadzu) enables stable, ultrafast gradient elution through accurate solution delivery and the use of a high--efficiency gradient mixer.

High performance liquid chromatography (HPLC) is a powerful analytical technique used to separate, identify and quantify compounds with a wide range of differing properties.

Microvolume assessment of bacterial culture growth was found to facilitate measurement of undiluted cultures. Comparison between microvolume and cuvette-based data requires the use of a conversion factor, which can be simply determined.

Microwave Assisted Extraction offers significant benefits over traditional extraction techniques for PCB determination from environmental samples including higher sample throughput, time savings, reduced solvent, and great reproducibility.

The cleaning of cosmetic creams and lotions from glassware is achieved through a combination of detergents, hot water – programmed in automated washing system.