摘要
本文提出用羟胺与葡萄糖酸δ－内酯反应生成异羟肟酸，考察了异羟肪酸与三氯化铁反应生成红色络合物，用以测定葡萄酸δ－内酯的分析方法。该法λ＿（ｍａｘ）＝４９７ｎｍ，浓度线性范围２０～９００μｇ／ｍＬ，检出下限是９．０μｇ／ｍＬ。研究了２９种物质存在的干扰情况。
he hydroxamic acid from the reaction ofgluconolactone(GCL )with hydramine wasused to develop a new and fast spectropho-tometric method for the determination of GCLwhich is based on the reaction of ferric chlo-ride with hydroxamic acid.The determinationwas carried out in the solution of the red com-plex with pH 1.64 at 497nm,The linear rangeof GCL concentration is 20～900μg/mL,andthe detection limit is 9.0μ/mL. The interfer-ences of 29 diverse components have beenstudied.
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第4期50-53,共4页
Chinese Journal of Analysis Laboratory
