2002
DOI: 10.1016/s0021-9673(02)00141-3
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Determination of inorganic cations and ammonium in environmental waters by ion chromatography with a high-capacity cation-exchange column

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Cited by 110 publications
(52 citation statements)
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“…The two solutions so far collected were analyzed by ionic chromatography [10]. The relative concentration of ND 3 in water (ml of ND 3 /ml of water) has been determined by using a calibrated standard solution.…”
Section: Methodsmentioning
confidence: 99%
“…The two solutions so far collected were analyzed by ionic chromatography [10]. The relative concentration of ND 3 in water (ml of ND 3 /ml of water) has been determined by using a calibrated standard solution.…”
Section: Methodsmentioning
confidence: 99%
“…As an example, advances in column design led to the marketing of dedicated columns, namely IonPac CS12, CS15 [14], and CS16 [15], of high capacity (2.8 meq for 4 mm 9 250 mm CS12 and CS15 columns and 8.4 meq for 5 mm 9 250 mm CS16 column) and incorporating carboxyl groups as cation-exchange sites. Among the columns listed above, IonPac CS15, besides carboxylic functionality contains phosphonic and crown ether groups that enhance selectivity among adjacent peaks [16], through the complexation of cations, with complexation being largely dependent on the size of the hydrophilic cavity of the crown ether in relation to the ionic radius of the analytes.…”
Section: Inorganic Cations and Ammoniamentioning
confidence: 99%
“…и от состава пробы. Ионная хрома-тография [4] и флуорометрия [5] обладают высокой селективностью и низкими пределами обнаружения, однако, так же как и спектрофотометрический анализ, являются лабораторными методами и не могут быть применены для анализа in situ. Электрохимические сенсоры, как правило, недостаточно селективны и не позволяют проводить определение аммония в природных водах без предварительной пробоподго-товки.…”
Section: Introductionunclassified