食品研究与开发
食品研究與開髮
식품연구여개발
FOOD RESEARCH AND CEVELOPMENT
2013年
23期
56-59
,共4页
张苗%许宏民%许健%苗贵东%王乐%项海波%张丽
張苗%許宏民%許健%苗貴東%王樂%項海波%張麗
장묘%허굉민%허건%묘귀동%왕악%항해파%장려
微波消解%碰撞反应池%电感耦合等离子体质谱法%有机酸盐
微波消解%踫撞反應池%電感耦閤等離子體質譜法%有機痠鹽
미파소해%팽당반응지%전감우합등리자체질보법%유궤산염
microwave digestion%dynamic collision reaction cell (DRC)%Inductively Coupled Plasma Mass Spectrometry(ICP-MS)%organic acid salts
建立有机酸盐中Pb、Cd,Cr、As、Fe、Cu、Mn、Co、Ni、Sb等10种杂质元素的微波消解碰撞反应池技术电感耦合等离子体质谱法。通过基体匹配、正确选择测量同位素及内标元素后,有效地克服了因高钙、高钠基体效应带来的测量偏差,极大的消除了多原子离子对待测元素的干扰,使有机酸盐中杂质元素的测试更为准确。方法的检出限为0.015 mg/kg~1.5 mg/kg之间,回收率均在90.0%~110.0%之间,相对标准偏差为2.01%~10.3%。
建立有機痠鹽中Pb、Cd,Cr、As、Fe、Cu、Mn、Co、Ni、Sb等10種雜質元素的微波消解踫撞反應池技術電感耦閤等離子體質譜法。通過基體匹配、正確選擇測量同位素及內標元素後,有效地剋服瞭因高鈣、高鈉基體效應帶來的測量偏差,極大的消除瞭多原子離子對待測元素的榦擾,使有機痠鹽中雜質元素的測試更為準確。方法的檢齣限為0.015 mg/kg~1.5 mg/kg之間,迴收率均在90.0%~110.0%之間,相對標準偏差為2.01%~10.3%。
건립유궤산염중Pb、Cd,Cr、As、Fe、Cu、Mn、Co、Ni、Sb등10충잡질원소적미파소해팽당반응지기술전감우합등리자체질보법。통과기체필배、정학선택측량동위소급내표원소후,유효지극복료인고개、고납기체효응대래적측량편차,겁대적소제료다원자리자대대측원소적간우,사유궤산염중잡질원소적측시경위준학。방법적검출한위0.015 mg/kg~1.5 mg/kg지간,회수솔균재90.0%~110.0%지간,상대표준편차위2.01%~10.3%。
To study the detection of trace elements such as Pb,Cd,Cr,As,Fe,Cu,Mn,Co,Ni,Sb in organic acid salts by ICP-MS and optimized the dectection conditions of the devices in dynamic collision reaction cell (DRC).With matric matching and correct isotope,the measurement error of high-calcium or high-sodium can effectively overcome.The detection limit of this method were 0.015 mg/kg-1.5 mg/kg ,the recovery rate were 90.0%-110.1%,the precision RSD were 2.01%-10.3%.