Investigations concerning the system peak in ion-chromatography using indirect photometric detection

Brandt, G.; Vögler, P.; Kettrup, A.

doi:10.1007/bf00498167

Cited by 8 publications

(1 citation statement)

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“…The use of a weak organic acid salt as an eluent for anion IPC has been usually accompanied by the appearance of one or more system (extraneous) peaks that are not related to the analyte ions. These system peaks can overlap desired analyte peaks particularly at low sample concentrations (7,9). The neutral components of these eluents have been considered to be the responsible species for these extra peaks (10).…”

Section: Introductionmentioning

confidence: 99%

Indirect photometric chromatography of anions using sodium naphthalenetrisulfonate

Maki¹,

Danielson²

1991

Anal. Chem.

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A triply charged eluent has been characterized for anion-exchange chromatography with Indirect photometric detection. Sodium naphthalenetrisulfonate has shown particular promise for the separation and detection of N02", Br, N03", S042~, I", and SCN". The analysis of a mixture containing these anions can be performed In less than 16 min with detection limits of 0.4-1 ng for all anions. The determination of the strongly retained sulfur oxides such as dithlonlte, tetrathlonate, and other polythlonates can be easily accomplished with this highly charged eluent In a short time with high sensitivity. The chromatographic performance of this eluent requires no pH adjustment of the mobile phase. In addition, chromatograms obtained with this eluent were free from any system peaks.

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Section: Introductionmentioning

confidence: 99%