当前位置: 首页 > 文章 > 咔唑法与间苯三酚法测定硫酸软骨素比较研究 南方水产科学 2012,8 (6) 67-73
Position: Home > Articles > Comparison of carbazole method and phloroglucinol method for chondroitin sulfate determination South China Fisheries Science 2012,8 (6) 67-73

咔唑法与间苯三酚法测定硫酸软骨素比较研究

作  者:
魏涯;赵永强;郝淑贤;岑剑伟;黄卉;李来好
单  位:
中国水产科学研究院南海水产研究所
关键词:
硫酸软骨素;咔唑法;间苯三酚法;测定
摘  要:
硫酸软骨素(chondroitin sulfate,CS)经水解和显色后,分别采用咔唑法与间苯三酚法测定其质量浓度,并对这2种方法进行比较。结果显示,咔唑法ρ(CS)和间苯三酚法ρ(CS)分别在0.01~0.05 mg.mL-1和0.1~1.0mg.mL-1范围内与其吸光度值呈良好的线性关系。对同一样品进行6次平行试验,咔唑法的相对标准偏差(RSD)为3.90%,间苯三酚法的RSD为4.28%,均具有较高的精密度。对这2种方法分别进行3个不同加标水平的回收率试验,咔唑法的加标回收率为98.0%~102.5%,间苯三酚法为83.2%~106.6%。因此,咔唑法与间苯三酚法均能准确测定CS的质量浓度。
译  名:
Comparison of carbazole method and phloroglucinol method for chondroitin sulfate determination
作  者:
WEI Ya1,ZHAO Yongqiang1,2,HAO Shuxian1,CEN Jianwei1,HUANG Hui1,LI Laihao1(1.Key Lab.of Aquatic Product Processing,Ministry of Agriculture;National R&D Center for Aquatic Product Processing; South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510300,China; 2.College of Food Science and Engineering,Ocean University of China,Qingdao 266003,China)
关键词:
chondroitin sulfate(CS);carbazole method;phloroglucinol method;determination
摘  要:
We compared the determinations of the concentrations of hydrolyzed and colored chondroitin sulfate(CS) by carbazole method and phloroglucinol method.The results reveal that the CS concentration by carbazole method and phloroglucinol method showed good linear relationship with their absorbance values within the ranges of 0.01-0.05 mg · mL-1 and 0.1-1.0 mg · mL-1,respectively.After 6 parallel tests on the same sample,the relative standard deviations(RSD) by carbazole method and phloroglucinol method were 3.90% and 4.28%,respectively,both with high precision.The two methods were spiked with 3 levels;the recoveries of carbazole method and phloroglucinol method were 98.0%-102.5% and 83.2%-106.6%,respectively.Thus,both carbazole method and phloroglucinol method can determine CS concentration accurately.

相似文章

计量
文章访问数: 16
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊