用石墨炉原子吸收光谱法分析柠檬香茅（DC.）Stapf样品中的痕量和必需元素及其健康问题
Trace and Essential Elements Analysis in Cymbopogon citratus (DC.) Stapf Samples by Graphite Furnace-Atomic Absorption Spectroscopy and Its Health Concern.
作者信息
Anal Jasha Momo H
机构信息
Elemental Analysis Section, Sophisticated Analytical Instrument Facility (SAIF), North Eastern Hill University, Shillong, Meghalaya 793022, India ; Center for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, Meghalaya 793022, India.
出版信息
J Toxicol. 2014;2014:690758. doi: 10.1155/2014/690758. Epub 2014 Dec 1.
Abstract
Cymbopogon citratus (DC.) Stapf commonly known as lemon grass is used extensively as green tea and even as herbal tea ingredient across the world. Plants have the ability to uptake metals as nutrient from the soil and its environment which are so essential for their physiological and biochemical growth. Concentrations of these twelve trace elements, namely, Mg, Ca, Cr, Mn, Fe, Ni, Cu, Zn, Mo, As, Cd, and Pb, are analysed by graphite furnace-atomic absorption spectroscopy (GF-AAS) and are compared with the permissible limits of FAO/WHO, ICMR, and NIH, USA, which are found to be within permissible limits. Toxic metals like As, Cd, and Pb, analysed are within the tolerable daily diet limit and at low concentration.
摘要
柠檬草（学名：Cymbopogon citratus (DC.) Stapf）在世界各地被广泛用作绿茶甚至草药茶的成分。植物有从土壤及其环境中吸收金属作为养分的能力，而这些金属对其生理和生化生长至关重要。通过石墨炉原子吸收光谱法（GF-AAS）分析了这12种微量元素，即镁、钙、铬、锰、铁、镍、铜、锌、钼、砷、镉和铅的浓度，并与粮农组织/世界卫生组织、印度医学研究理事会和美国国立卫生研究院的允许限量进行了比较，结果发现这些元素的浓度在允许限量范围内。所分析的砷、镉和铅等有毒金属在每日可耐受饮食限量内且浓度较低。
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