四季彩票上光大gd567

2020年01月02日 星期四
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您所在的位置:四季彩票上光大gd567 > 解决方案 > 微波消解-电感耦合等离子体质谱法测定乳制品中总碘
 

微波消解-电感耦合等离子体质谱法测定乳制品中总碘

http://w8868.cn JIANCETONG SHIJIAN:2016-03-16

【摘要】

四季彩票上光大gd567DIANSHIRENTIBIXUDEWEILIANGYUANSUZHIYI,DIANQUEFAHUIDAOZHI JIAZHUANGXIANGONGNENGJIANDI,YINGXIANGZHILIJISHENGZHANGFAYU,DANGUOLIANGBUDIAN HUIDAOZHIJIAZHUANGXIANSUHECHENGGUODUO,XINGCHENGDIANJIAKANG。DIANZAIZIRAN JIEYIYOULITAIDEDIAN、DIANHUAWU、DIANSUANYANYIJIJIAJIDIANDENGDUOZHONG XINGTAICUNZAI,ZAIRENTIHEDONGWUTINEIYUJIAZHUANGXIANDANBAIJIEHE。

方案优势

RUZHIPINZHONGDIANFENXIDEQIANCHULIFANGFAYOUSHUITIFA、JIANTI QUFAHEWEIBOXIAOJIEFA。QUANZHIHEGAOZHINAIFENZHONGDIANYUJIAZHUANGXIAN DANBAIJIEHE,SHUITIQUFAHEJIANTIFAWUFAJIANGQIDUANLIE。XIAOSUAN WEIBOXIAOJIEFANGFASHIHESUOYOURUZHIPINJIZHIZHONGDIANFENXIDEYANGPIN CHULI。

采用标准

XIANGGUANBIAOZHUN

方法/原理/步骤

  实验室试剂

四季彩票上光大gd567  DIANBIAOZHUNCHUBEIRONGYE:1.00 g·L-1,JIANGDIANHUAJIAJIZHUNSHIJIZAI105℃XIAGANZAO2 h,LENGQUEHOUCHENGQU131 mgYU100 mLZONGSERONGLIANGPINGZHONG,YONGSHUIRONGJIEBINGXISHIZHIKEDU,LENGZANGBAOCUN,YOUXIAOQIWEI6GEYUE。SHIYONGQIANYIANSHUI(10+90)RONGYEWEIJIEZHI,PEIZHICHENG10.0mg·L-1,100ug·L-1DIANBIAOZHUNRONGYE。

  NEIBIAORONGYE:5.0mg·L-1DIRONGYE,ANSHUI(2+98)RONGYEWEIJIEZHI。

四季彩票上光大gd567  DIAOXIERONGYE:10.0ug·L-1DEMEI、QIAN、LAOHUNHERONGYE,ANSHUI(2+98)RONGYEWEIJIEZHI。

四季彩票上光大gd567  QULATONGX-100(Triton X-100)RONGYE:JIASHUI700 mLYU2000mLSHAOBEIZHONG,ZAICILIJIAOBANQISHANGYUNSUJIAOBAN,MANMANJIARUTriton X-100 50 mL,JIASHUIDINGRONGZHI1 L,YOUXIAOQIWEI6GEYUE。

  LINXIYE:ANSHUI5 mLHETriton X_100RONGYE50 mL,JIASHUIDINGRONGZHI1 L。

四季彩票上光大gd567  ANSHUIHEXIAOSUANWEIFENXICHUN,SHIYANYONGSHUIWEICHAOCHUNSHUI。

  试验方法

  样品前处理

  CHENGQUNAIFENSHIYANG15.0gYUSANJIAOSHAOPINGZHONG,JIARU(60±5)℃SHUI85.0 gRONGJIE,YAOYUNDENAIFENSHIYE。

  CHENGQUNAIFENSHIYE1.3g(XIANGDANGYU0.2 gNAIFENYANGPIN,YETINAIZHIJIECHENGQU1.0g)YUXIAOJIEGUANZHONG,JIARU5.0mg· L-1DINEIBIAORONGYE1.0 mLHEXIAOSUAN2.5mL,XUANJINGUANGAI,ZHUANGSHANGHUTAOHEGUANKUANGJIA,FANGRUWEIBOXIAOJIEYIZHONG,ANWEIBOXIAOJIECHENGXUJINXINGXIAOJIE,XIAOJIEJIESHUHOU,LENGQUEZHISHIWEN,ZAITONGFENGCHUZHONGXUANSONGXUANNIU,PAIQI。ZAIXIAOJIEGUANZHONGJIARUSHUI10.o mLHOU,JIANGYANGPINRONGYEZHUANYIZHI50 mLLIXINGUANZHONG,JIARUANSHUI10.0 mLHETriton X_100RONGYE2.5 mL,YONGSHUIDINGRONGZHI50.0 mLBINGHUNYUN。TONGSHIZUOKONGBAISHIYAN。

  样品测定

四季彩票上光大gd567  YIQIDIANHUOHOU,YONG10.0ug·L.1DIAOXIERONGYEYOUHUAYIQICANSHU,YONGLINXIYECHONGLINGUANLU,SHIXITONGCHENGJIANXINGHUANJING。DIANWEIDANYITONGWEISUYUANSU,TIANRANFENGDUKERENWEI100%,CELIANGTONGWEISUWEI126.9,XUANZEDIZHILIANGSHUWEI129.9,SHOUDONGJIARUNEIBIAO,CAIYONGBIAOZHUNMOSHIJIANCE,TONGGUONEIBIAORONGYEDIAOJIANCEQIMAICHONG/MONISHUJUZHUANHUANYINZI(P/A),FUHEYIQIYAOQIUHOU,ZAIYIQIGONGZUOTIAOJIANXIA,YICICEDINGSHIJIKONGBAI、BIAOZHUNRONGYEXILIE、YANGPINRONGYE。

  结果与讨论

  样品前处理方法的选择

  YINDIANYIHUIFA,ZAIFENXISHIPINZHONGDIANSHI,TONGCHANGRENWEIWEIBOXIAOJIECHULIYANGPINDIANHUIYOUSUNSHI。SHIYANJIEGUOBIAOMING:WEIBOXIAOJIEFANGFACHULIYANGPINSHI,YINGXUANZEMIBIDEWEIBOXIAOJIEZHUANGZHI,BUNENGXUANZEZIDONGXIEYAWEIBOXIAOJIEZHUANGZHI,QIEXIAOJIEJIESHUHOUCHONGFENLENGQUEZHISHIWEN,KEYISHIDIANFENXIDEDAOJIAOGAODEHUISHOULVHEJINGMIDU。SHIYANXUANZEDEYANGPINLIANGXIANGDANGYU0.2 gNAIFENYANGPIN,XIAOJIEWENDUWEI190℃。

  分析条件的选择

四季彩票上光大gd567  DIANYIDIANLIZIXINGSHIZAIXIAOSUANJIEZHIZHONGCEDINGSHI,FENXIWUCHAJIAODA,YINWEIDIANLIZI、DIAN、DIANSUANGENHEGAODIANSUANGENDENGBUTONGXINGTAIZAIICP.MSLIZIJISHULVBUYIZHI,ZAIXIAOSUANJIEZHIZHONGDIANHUAQINGYIHUIFA,DIANLIZIRONGYIBEIYANGHUACHENGDIAN、DIANSUANGENHEGAODIANSUANGEN,XINHAOBODONGDAQIEWUGUILVXING。ICP_MSFENXIDIAN,ZAIRUOJIANXINGHUANJINGXIAXINHAOBIJIAOWENDING。

四季彩票上光大gd567  JUSIFUYIXI(PTFE)HEFUHUAYIBINGXI(FEP)DENGSULIAORONGQIDUIYOULIDIANYOUXIFUZUOYONG,ZHEISHIDEICP—MSJINYANGXITONGCUNZAIJIYIXIAOYING。YONGANSHUIHETriton X_100RONGYEPEIZHIDELINXIYEJINXINGCHONGLIN,SHIXITONGCHENGJIANXINGHUANJING,ZAIRUOJIANXINGHUANJINGXIADIANYIIYIXINGSHICUNZAI,ICP-MSDIANHUOHOUXIANZHUJIANGDILEDIANDEJIYIXIAOYING。SHIYANXUANZEYONGANSHUIHETriton x-100RONGYECHONGLINXITONG30 min,QIEZAIYANGPINRONGYEZHONGJIARUANSHUIHETriton x-100RONGYE。

仪器设备

   实验仪器

  Elan DRC-eXINGDIANGANOUHEDENGLIZITIZHIPUYI;EX—CELQUANGONGNENGXINGWEIBOXIAOJIEXITONG,DAIDAKUANGJIAMIBIXIAOJIEGUAN,JUYOUFANGQIKONGHEMIFENGWANSHUANGZHONGXIEYABAOHUXIAOJIEGUAN,RONGJI100 mL。

  

 

仪器工作条件

  

1)IcP_Ms条件射频功率1 100 w;等离子
体气流量16.o L·min~,雾化气流量o.9 L·
min~;雾化室温度2℃;扫描30次;重复5次;数据
采集为跳峰方式;内标加入方式为手动加入。


2)微波消解程序功率1 600 W,斜坡升温
15 min,保持15 min,升温至190℃,冷却20 min。

更多关于 乳制品  微波消解  电感耦合  的新闻

http://lab0277.w8868.cn/

  BAOSHANSHIZONGHEJISHUJIANCEZHONGXINZUJIANYU2000NIAN3 YUE,LIJINGSHUCIGAIGEHOU,YOUYUNNANSHENGJIGOUBIANZHIWEIYUAN

http://lab0863.w8868.cn/

四季彩票上光大gd567http://lizi0823@9191.cn.w8868.cn/

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