Application Notes: LC

Analysis of arsenic species is made challenging due to diverse sample matrices. To circumvent these problems, an HPLC ICP-MS method has been developed. Resolution of arsenic compounds is achieved by ion exchange chromatography on a Hamilton PRP-X100 column, a 55% cross-linked polystyrene-divinylbenzene copolymer functionalized with quaternary ammonium anion-exchanger group.

Pickering Laboratories, Inc. offers a complete solution for Amino Acids Analysis according to European Pharmacopoeia 8.0. This includes the Pinnacle PCX post-column derivatization instru¬ment, analytical columns and GARDs, buffers and Trione Ninhydrin reagent. The methods presented in this application note were optimized to comply with system suitability requirements of Pharmacopoeia 8.0 methods.

Pickering Laboratories, Inc. offers a complete solution for Amino Acids Analysis according to European Pharmacopoeia 8.0. This includes the Pinnacle PCX post-column derivatization instru¬ment, analytical columns and GARDs, buffers and Trione Ninhydrin reagent. The methods presented in this application note were optimized to comply with system suitability requirements of Pharmacopoeia 8.0 methods.

Monitoring of Glyphosate in crops and water is mandated in many countries. Pickering offers a sensitive and robust HPLC method for analysis of Glyphosate in soy beans, corn and sunflower seeds. This method utilizes a simplified sample preparation procedure that has proven to be effective even for challenging matrices.

Monitoring of Glyphosate in crops and water is mandated in many countries. Pickering offers a sensitive and robust HPLC method for analysis of Glyphosate in soy beans, corn and sunflower seeds. This method utilizes a simplified sample preparation procedure that has proven to be effective even for challenging matrices.

A CHIRALPAK IG column (immobilized meta selector) was used to develop the enantioselective separation of methylclothiazide. Meta-substituted immobilized chiral selectors have been shown to have remarkable affinity for resolution of chiral compounds from different types of molecules. Available in 3 and 5 micron.

A CHIRALPAK IG column (immobilized meta selector) was used to develop the enantioselective separation of methylclothiazide. Meta-substituted immobilized chiral selectors have been shown to have remarkable affinity for resolution of chiral compounds from different types of molecules. Available in 3 and 5 micron.

The quick capture and accurate titer analysis over a wide concentration range of monoclonal antibody is demonstrated using a TSKgel® Protein A-5PW, 20 μm analytical column.

A CHIRALPAK IG column (immobilized meta selector) was used to develop the enantioselective separation of methylclothiazide. Meta-substituted immobilized chiral selectors have been shown to have remarkable affinity for resolution of chiral compounds from different types of molecules.

A CHIRALPAK IG column (immobilized meta selector) was used to develop the enantioselective separation of methylclothiazide. Meta-substituted immobilized chiral selectors have been shown to have remarkable affinity for resolution of chiral compounds from different types of molecules.

exposure to MOHs (Mineral Oil Hydrocarbons) via packaging could contribute significantly to the total exposure to these contaminants and may pose a human health hazard. In the present work, migration of MOHs and DIPN from recycled paperboard boxes in direct contact with dry pasta (both semolina and egg pasta) has been monitored during shelf life at regular times (up to two years).

This application note describes the use of ISOLUTE SLE+ for extraction of estrone (E1) and estradiol (E2) from human serum. Analysis is performed by an HPLC-MS/MS method that gives limits of detection of 0.001 ng/mL without derivatization or fluoride adduct stabilization. ISOLUTE SLE+ products provides high analyte recoveries, no emulsion formation and significantly reduced sample preparation time compared to traditional liquid-liquid extraction.

A CHIRALPAK IG column (immobilized meta selector) was used to develop the enantioselective separation of methylclothiazide. Meta-substituted immobilized chiral selectors have been shown to have remarkable affinity for resolution of chiral compounds from different types of molecules.