Determination of chloride, bromide, and iodide in silver halides by ion exchange and ion interaction chromatography

Improved procedure for the determination of iodide by ion chromatography with electrochemical detection

“…There is a need for a stable oxygen sensor that is suitable for continuous application in long-term monitoring situations without the need of frequent recalibration. Such a sensor would make possible certain important monitoring applications that are not now feasible (1,2).…”

“…The amount by which the concentration of the eluent can be increased to alleviate these problems is limited by the capacity of the suppressor column. Ion interaction chromatography can eliminate tailing of iodide with good resolution from other anions; however, the detection limit using conductometric detection is only 48 ng/mL (1). The same technique with ultraviolet absorption detection can detect iodide at 20 ng/mL and gives a linear response over 3 orders of magnitude (1).…”

“…Ion interaction chromatography can eliminate tailing of iodide with good resolution from other anions; however, the detection limit using conductometric detection is only 48 ng/mL (1). The same technique with ultraviolet absorption detection can detect iodide at 20 ng/mL and gives a linear response over 3 orders of magnitude (1). Single column ion chromatography with conductometric detection has also been used for iodide determinations with a detection limit of 15 ng/mL and with very good linearity over the range of 15-100 ng/mL using a 2-mL injection (2).…”

Geological and inorganic materials

“…Phosphorus in several rock standards has also been determined by suppressed mode ion chromatography (148). Silver halides have been analyzed by ion chromatography for chloride and bromide and by ion interaction chromatography for iodide (149). The silver halides were dissolved by reduction of the silver with basic aqueous hydrazine.…”

Determination of chloride in platinum-rhenium alumina-based reforming catalyst by ion chromatography

“…Ion chromatography, the method of choice for the determination of common anions, offers certain advantages over other techniques (7)(8)(9). In the literature few reports (10)(11)(12)(13)(14)(15) have been published on the ion chromatographic analysis of ions in the inorganic materials but none have appeared on its use for the analyses of catalysts. The objective of this work was to develop an ion chromatographic (IC) method for the rapid and accurate determination of chloride in bimetallic reforming catalysts.…”