CAJ | 학술논문

摸清贵州4个产茶区春茶中的微量元素含量，为评价其春茶质量提供参考，采用电感耦合等离子体质谱（ICP-MS）技术对贵州4个产茶区24个春茶样品中的 Zn、Cu、Pb、Co、Mo 等微量元素含量进行检测。结果表明：1）24个春茶样品中的 Zn 元素平均含量为54．43 mg／kg，Co 为0．0853 mg／kg，Mo 为0．0602 mg／kg，Pb 为3．95 mg／kg，Cu 为25．59 mg／kg，Ni 为11．41 mg／kg，Cr 为0．38 mg／kg，稀土总量为1．3752 mg／kg。2）在4个产茶区春茶样品中，Zn 元素的平均含量以遵义茶区最高，为62．53 mg／kg；铜仁茶区最低，为49．32 mg／kg。Cu 元素平均含量以黔南茶区最高，为29．54 mg／kg；安顺茶区最低，为20．59 mg／kg；Pb 元素平均含量以黔南茶区最高，为4．24 mg／kg；铜仁茶区最低，为3．61 mg／kg。Co 元素平均含量以铜仁茶区最高，为0．0916 mg／kg；安顺茶区最低，为0．0813 mg／kg。Mo 元素平均含量以安顺茶区最高，为0．0622 mg／kg；铜仁茶区最低，为0．0586 mg／kg。Cr 元素平均含量以铜仁茶区最高，为0．41 mg／kg；安顺茶区最低，为0．35 mg／kg。Ni 元素平均含量以安顺茶区最高，为15．17 mg／kg；黔南茶区最低，为8．34 mg／kg。结论：贵州4个产茶区春茶样品中的 Zn 元素含量较高，Co、Mo 元素含量适中，Pb、Cu、Ni 和 Cr 元素含量在国标绿色食品规定的茶叶质量安全范围。
모청귀주4개산다구춘다중적미량원소함량，위평개기춘다질량제공삼고，채용전감우합등리자체질보（ICP-MS）기술대귀주4개산다구24개춘다양품중적 Zn、Cu、Pb、Co、Mo 등미량원소함량진행검측。결과표명：1）24개춘다양품중적 Zn 원소평균함량위54．43 mg／kg，Co 위0．0853 mg／kg，Mo 위0．0602 mg／kg，Pb 위3．95 mg／kg，Cu 위25．59 mg／kg，Ni 위11．41 mg／kg，Cr 위0．38 mg／kg，희토총량위1．3752 mg／kg。2）재4개산다구춘다양품중，Zn 원소적평균함량이준의다구최고，위62．53 mg／kg；동인다구최저，위49．32 mg／kg。Cu 원소평균함량이검남다구최고，위29．54 mg／kg；안순다구최저，위20．59 mg／kg；Pb 원소평균함량이검남다구최고，위4．24 mg／kg；동인다구최저，위3．61 mg／kg。Co 원소평균함량이동인다구최고，위0．0916 mg／kg；안순다구최저，위0．0813 mg／kg。Mo 원소평균함량이안순다구최고，위0．0622 mg／kg；동인다구최저，위0．0586 mg／kg。Cr 원소평균함량이동인다구최고，위0．41 mg／kg；안순다구최저，위0．35 mg／kg。Ni 원소평균함량이안순다구최고，위15．17 mg／kg；검남다구최저，위8．34 mg／kg。결론：귀주4개산다구춘다양품중적 Zn 원소함량교고，Co、Mo 원소함량괄중，Pb、Cu、Ni 화 Cr 원소함량재국표록색식품규정적다협질량안전범위。
To explore the contents of trace elements in spring tea from four tea-producing areas in Guizhou,and provide a reference for evaluating tea quality,inductively coupled plasma mass spectrometry (ICP-MS)was applied in the measurement of Zn,Cu,Pb,Co and Mo content in 24 tea samples,which were picked in four different districts in Guizhou.The experiment result indicated that the average content of Zn,Co,Mo,Pb,Cu,Ni,Cr and rare earth was respectively 54.43 mg/kg,0.085 3 mg/kg,0.060 2 mg/kg,3.95 mg/kg,25.59 mg/kg,11.41 mg/kg,0.38 mg/kg and 1.375 2 mg/kg.The average Zn content was the highest in Zunyi(62.53 mg/kg)and lowest in Tongren(49.32 mg/kg);Cu was the highest in Qiannan(29.54 mg/kg)and lowest in Anshun(20.59 mg/kg);Pb was the highest in Qiannan(4.24 mg/kg)and lowest in Tongren(3.61 mg/kg);Co was the highest in Tongren(0.091 6 mg/kg)and lowest in Anshun(0.081 3 mg/kg);Mo was the highest in Anshun (0.062 2 mg/kg)and lowest in Tongren (0.058 6 mg/kg);Cr was the highest in Tongren(0.41 mg/kg)and lowest in Anshun(0.35 mg/kg);Ni was the highest in Anshun(15.17 mg/kg)and lowest in Qiannan(8.34 mg/kg).In conclusion,in the four tea-producing areas,Zn content was high,Co and Mo contents were medium,the contents of Pb,Cu,Ni and Cr were in the tea quality safety range of national green food provisions.