Matrix elimination in ion chromatography by “heart-cut” column-switching techniques

DETERMINATION OF BROMATE IN DRINKING WATER AT THE LOW μg/L LEVEL BY COLUMN SWITCHING ION CHROMATOGRAPHY

“…[15][16][17][18][19] It has universal applicability, does not suffer from the limitations associated with classical matrix elimination in liquid chromatography, and markedly reduces the column abuse that can occur when the capacity of the column has been significantly exceeded. [15][16][17][18][19] It has universal applicability, does not suffer from the limitations associated with classical matrix elimination in liquid chromatography, and markedly reduces the column abuse that can occur when the capacity of the column has been significantly exceeded.…”

Determination of ammonium in seawater by column-switching ion chromatography

“…monium ions, and allows for the determination of All ammonium standard solutions were prepared sodium-to-ammonium concentration ratios in the from ammonium chloride (Beijing Xinguang Chemiorder of 20 000-to-1. This method requires two cal Reagent Factory, China [18][19][20][21][22]. In this method, a six-step from Yantai, Shandong province in the north of procedure was needed to optimize the 'heart-cut' China.…”

Developments in sample preparation and separation techniques for the determination of inorganic ions by ion chromatography and capillary electrophoresis

“…matrix ions being directed to waste. One such Several methods have been devised to deal with example was for the analysis of sulfite in a variety of samples of this type, normally by coupling the foods [26,27], wherein sulfite anions were bound to a preconcentration procedure to a suitable matrix Dionex AS-2 anion-exchange cartridge, with the elimination procedure. One approach which is suit-bulk of the matrix eluted to waste.…”