化学分析计量
化學分析計量
화학분석계량
Chemical Analysis and Meterage
2015年
5期
78-80
,共3页
黄瓜%荷兰小黄瓜%元素%ICP-AES
黃瓜%荷蘭小黃瓜%元素%ICP-AES
황과%하란소황과%원소%ICP-AES
cucumber%Netherlands cucumber%K%Ca%Mg%Fe%Mn%Cu%Zn%Se%ICP-AES
利用微波消解法消解样品，建立电感耦合等离子体原子发射光谱（ICP–AES）法，对大黄瓜和荷兰小黄瓜两种黄瓜样品中的K，Ca，Mg，Fe，Mn，Cu，Zn，Se 8种元素进行含量测定。K+线性范围为0～100μg／mL，Ca2+， Mg2+线性范围为0～20μg／mL，其余离子线性范围为0～2.0μg／mL，相关系数在0.9996～1.0000之间，样品加标回收测定结果的相对标准偏差均小于5%（n=6），加标回收率为93.4%～103.2%。结果表明人体所必须的常量元素K， Ca，Mg在两种黄瓜样品中均大量存在，荷兰小黄瓜中K，Ca，Cu，Mn的含量高于大黄瓜，而Fe，Mg，Se的含量低于大黄瓜，Zn在两种黄瓜样品中含量相当。该法可用于测定黄瓜样品中的K，Ca，Mg，Fe，Mn，Cu，Zn，Se元素含量。
利用微波消解法消解樣品，建立電感耦閤等離子體原子髮射光譜（ICP–AES）法，對大黃瓜和荷蘭小黃瓜兩種黃瓜樣品中的K，Ca，Mg，Fe，Mn，Cu，Zn，Se 8種元素進行含量測定。K+線性範圍為0～100μg／mL，Ca2+， Mg2+線性範圍為0～20μg／mL，其餘離子線性範圍為0～2.0μg／mL，相關繫數在0.9996～1.0000之間，樣品加標迴收測定結果的相對標準偏差均小于5%（n=6），加標迴收率為93.4%～103.2%。結果錶明人體所必鬚的常量元素K， Ca，Mg在兩種黃瓜樣品中均大量存在，荷蘭小黃瓜中K，Ca，Cu，Mn的含量高于大黃瓜，而Fe，Mg，Se的含量低于大黃瓜，Zn在兩種黃瓜樣品中含量相噹。該法可用于測定黃瓜樣品中的K，Ca，Mg，Fe，Mn，Cu，Zn，Se元素含量。
이용미파소해법소해양품，건립전감우합등리자체원자발사광보（ICP–AES）법，대대황과화하란소황과량충황과양품중적K，Ca，Mg，Fe，Mn，Cu，Zn，Se 8충원소진행함량측정。K+선성범위위0～100μg／mL，Ca2+， Mg2+선성범위위0～20μg／mL，기여리자선성범위위0～2.0μg／mL，상관계수재0.9996～1.0000지간，양품가표회수측정결과적상대표준편차균소우5%（n=6），가표회수솔위93.4%～103.2%。결과표명인체소필수적상량원소K， Ca，Mg재량충황과양품중균대량존재，하란소황과중K，Ca，Cu，Mn적함량고우대황과，이Fe，Mg，Se적함량저우대황과，Zn재량충황과양품중함량상당。해법가용우측정황과양품중적K，Ca，Mg，Fe，Mn，Cu，Zn，Se원소함량。
8 elements including K, Ca, Mg, Fe, Mn, Cu, Zn, Se in two cumcumber samples named cucumbers and Netherlands cucumbers were determined by using ICP–AES with microwave digestion. The linear range of K+ was 0–100μg/mL, linear ranges of Ca2+ and Mg2+ were 0–20μg/mL, and linear ranges of other ions were 0–2.0μg/mL. The linear correlation coefficients were 0.999 6–1.000 0. The recoveries were in the range of 93.4%–103.2% with RSD lower than 5%(n=6). Three macro elements K, Ca, Mg were abound in two kinds of cucumber. The content of K, Ca, Cu, Mn in Netherlands cucumber was higher than that in normal cucumbers, and the content of Fe, Mg, Se was lower than that in normal cucumbers. Zn performed close content in two cucumbers. This method can be used to determine the contents of the above 7 kinds of elements in cucumbers.
