广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2012年
19期
87-88
,共2页
邓柳红%唐权%罗明武%黄超%张春发
鄧柳紅%唐權%囉明武%黃超%張春髮
산류홍%당권%라명무%황초%장춘발
蛹虫草%催化光度法%硒
蛹蟲草%催化光度法%硒
용충초%최화광도법%서
cordyceps militaris%spectrophotometric method%selenium
建立了氯酸钾-盐酸苯肼-变色酸分光光度法测定蛹虫草子实体中硒含量的方法,并对其精密度、准确度进行研究。在测定范围内,该方法的线性相关系数R2=0.9991,加标回收率为92%~96%,硒含量相对标准偏差是1.8%,该方法用于蛹虫草子实体中硒含量的测定,结果良好,操作方便,成本低,为富硒蛹虫草菌株筛选和生产上的应用提供了简便易行的硒含量检测方法。
建立瞭氯痠鉀-鹽痠苯肼-變色痠分光光度法測定蛹蟲草子實體中硒含量的方法,併對其精密度、準確度進行研究。在測定範圍內,該方法的線性相關繫數R2=0.9991,加標迴收率為92%~96%,硒含量相對標準偏差是1.8%,該方法用于蛹蟲草子實體中硒含量的測定,結果良好,操作方便,成本低,為富硒蛹蟲草菌株篩選和生產上的應用提供瞭簡便易行的硒含量檢測方法。
건립료록산갑-염산분정-변색산분광광도법측정용충초자실체중서함량적방법,병대기정밀도、준학도진행연구。재측정범위내,해방법적선성상관계수R2=0.9991,가표회수솔위92%~96%,서함량상대표준편차시1.8%,해방법용우용충초자실체중서함량적측정,결과량호,조작방편,성본저,위부서용충초균주사선화생산상적응용제공료간편역행적서함량검측방법。
A spectrophotometric method has been developed for the determination of selenium in fruit bodies of cordyceps militaris.The method is based on the catalytic effect of selenium(IV)on the potassium chlorate oxidative coupling of chromotropic acid with Phenylhydrazine hydrochloride to form an azo dye(lambda(max)=520 nm).The reaction was monitored by measuring the change in absorbance of the dye produced.The calibration curve was linear between 0.024~0.12 μg·mL-1 of selenium,and the linearly dependent coefficient was 0.9991.The relative standard deviations(n=5)was 1.8%,and average recovery was 95.2%.