期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 52, 期 6, 页码 1419-1422出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf0305377
关键词
capillary zone electrophoresis; phytohormones; tomatoes
A test mixture of five phytohormones [naphthaleneacetic acid (NAA), naphthoxyacetic acid (NOA), indoleacetic acid (IAA), indolebutyric acid (IBA), and indolepropionic acid (IPA)] was investigated. These compounds were cleanly separated with good resolution by capillary zone electrophoresis with a UV diode array detector using 20 mM sodium phosphate buffer (pH 7.25). The lowest detection limit was obtained for IPA (0.45 mg L-1 or 0.005 mg kg(-1)) and the highest for NAA (1.04 mg L-1 or 0.014 mg kg(-1)). The method has been applied for tomato samples fortified with the five phytohormones using a liquid-liquid extraction procedure, obtaining recovery percentages ranging from 91 to 109.0%.
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