ICS67.050X04备案号：60229-2018DB63青海省地方标准DB63/T1671—2018青稞中直链淀粉和支链淀粉含量的测定分光光度法Determinationofamylaseandamylopectincontentinhullessbarley——Spectrophotometry2018-06-25发布2018-09-25实施青海省质量技术监督局发布DB63/T1671—2018I目次前言................................................................................II1范围..............................................................................12规范性引用文件....................................................................13术语和定义........................................................................13.1................................................................................1直链淀粉amylase................................................................13.2................................................................................1支链淀粉amylopectin............................................................14原理..............................................................................15试剂和材料........................................................................25.1试剂..........................................................................25.2标准品........................................................................25.3试剂配制......................................................................25.4标准溶液配制..................................................................26仪器和设备........................................................................27分析步骤..........................................................................27.1样品溶液的制备................................................................27.2双波长直链淀粉和支链淀粉标准曲线绘制..........................................37.3测定..........................................................................38结果的计算........................................................................39结果表示.......................................................................
