液相色谱法同时检测胍基乙酸、氨基乙酸和单氰胺
Chinese Journal of Analysis Laboratory(2015)
Abstract
建立了同时检测胍基乙酸(GAA)、氨基乙酸(GLY)和单氰胺(AN)的高效液相色谱方法.样品经ODS(C18)柱分离,流动相0.04 mol/L KH2PO4/乙腈=95/5 (V/V)洗脱,208 nm检测,在柱温30℃、流速0.6 mL/min时,12 min内完成检测.在考察范围内,色谱峰面积与浓度呈良好线性关系,相关系数在0.9972 ~0.9998之间,相对标准偏差(RSD,n=6)为0.93%~1.2%,回收率在97.9%~101%之间,GAA,GLY和AN的检出限分别为20.8,314,9.50 ng/mL.方法可满足胍基乙酸的产品质量控制、生产过程监控以及其它用途的检测需求.
MoreKey words
Aminonitrile,HPLC,Glycine,Guanidineacetic acid,UV detection
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