摘要
本文以含Ca2+、Mg2+的溶液为淋洗液,以Fe(Ⅱ)-磺基水杨酸为柱后衍生体系,在国产分离柱上分离了磷酸与植酸.利用Ca2+、Mg2+与植酸的络合作用缩短了植酸的保留时间,使植酸可在低酸度(pH=4)下被洗脱,实现了植酸的快速离子色谱分析.利用此法,测定大豆样品中植酸的含量,得到满意的结果.
With the solution including Ca2 + , Mg2+ as eluent, with Fe(III)-Ssal as post-column derivation system, phosphonic acid and phytic acid can be separated on a separator column(made in China). Using complexation of the Ca2+, Mg2+ with phytic acid, its retention time can be reduced, the phytic acid can be to eluted by an eluent with low acidity (pH=4) , and its determination with ion chromatography can be done more rapidly. Thus, phytic acid in soybean samples can be determined with this method and satisfactory results can be obtained.
出处
《大连大学学报》
2003年第2期42-44,共3页
Journal of Dalian University
