Thermo Fisher Scientific Inc. is pleased to announce a new application for the determination of nitrite and nitrate in milk by ion chromatography (IC) with suppressed conductivity detection using in-line sample preparation.

Thermo Fisher Scientific is pleased to announce a new Ion Chromatography (IC) method developed by Covance Laboratories Inc. for the total determination of free and total myo-inositol in foods, feeds, and infant formulas.

Hamilton Company is best known for manufacturing precision fluid measuring products, including syringes for HPLC and GC. For the last 30 years Hamilton Company has manufactured HPLC resins and columns while developing separations for customers.

Column technology has been a rich area for HPLC R&D. As reasonably expensive consumables, columns are a significant factor in LC operating costs and performance— in other words, key value drivers.

Reaction screening and purification are essential steps in small molecule pharmaceutical discovery labs. Cleaner samples for subsequent synthesis can reduce reaction by-products and facilitate the critical final purification of material for pharmaceutical profiling and toxicology studies.

Currently, the most common disinfection process in water and wastewater treatment plants currently uses chlorine gas. A process of ultraviolet (UV) disinfection is being increasingly used in many European countries but in many circumstances, ozonation is preferred.

HPLC systems are forced to their pressure limits under fast HPLC and high resolution HPLC conditions. System back pressure issues can arise from efforts to increase efficiency and resolution such as increasing flow rates and column lengths, as well as reducing particle size.

Modular HPLC systems provide versatility in terms of troubleshooting and repair as well as choice of mobile phase (through the ability to swap out columns rapidly).

As samples become increasingly active and more complex, labs simply cannot afford interferences caused by flow path activity in their GCs. A non-inert flow path can cause peak tailing and signal loss. Users need the most inert flow path possible to achieve the lower detection limits demanded by increasingly tough regulatory obligations.