App Notes

This Application Note shows direct conductivity detection as an ideal means to detect ammonium in a wastewater sample containing 400 mg/L sodium.

The Restriction of Hazardous Substances Directive (RoHS) requires to reduce the halogen content in several organic materials used in electrical and electronic equipment.

Iodine content in numerous iodinated X-ray contrast media (ICM) is approx. about 50% and is best determined by Combustion IC. For complete absorption of the iodine, high amounts of H2O2 (1000 mg/L) are required. Similarly, concentration of the internal standard should be 50 mg/L.

Determination of chloride and sulfate (not quantified) in a highly viscous petrochemical sample applying sample combustion followed by anion chromatography with conductivity detection after sequential suppression. The sample has a particularly high sulfate content.

Many GC leading manufacturers have started actively to recommend switching your carrier gas from Helium to H2. F-DGSi’s solution to this is the Hydrogen Gas Generator

Three separation modes in one column: SEC, RP, and Ion Exchange

Improvement in LC-MS/MS Analysis by Leveraging Column Selectivity and Effective Sample Prep

The separation of standard anions and oxyhalides is performed on the 930 Compact IC Flex instrument after Inline Ultrafiltration. Both anions and oxyhalides can be determined in one single run; the determination complies with EPA 300.1 part A and part B.

This application note describes the extraction of a range of SPICE drugs and metabolites from neat oral fluid and oral fluid from a commercial collection kit using ISOLUTE® SLE+ in both 96-well plate and column formats.