Contribution of substituents to the ion association extraction of quaternary ammonium ion with organic anions
نویسندگان
چکیده
منابع مشابه
Ion Homeostasis in the Leech: Contribution of Organic Anions
Organic anion concentrations in the blood of Hirudo medicinalis were determined in samples from individual animals using reverse-phase high-pressure liquid chromatography (HPLC) and ultraviolet detection. Quantitatively important anions were malate, cr-ketoglutarate, succinate, lactate and fumarate, constituting about 70% of total blood anions. Malate had the highest concentration, 34-68 mequiv...
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An extraction-spectrophotometric method for the determination of trace amounts of ammonium ion is described. Ammonium ion is effectively extracted as a neutral ternary complex NH . DB 18C6. calmagite at pH 3.0 into chloroform, followed by spectrophotometric determination at =48 5 nm. Molar absorptivity of the ternary complex at this wavelength is 1.08 10 mol cm . Beer's law is obeyed over...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1983
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.32.11_703