
[分化] 原子吸收分光光度法
The contents of elements K, Na, Ca, Mg in carbon fibre were determined by atomic absorption spectrophotometry.
碳纤维中的钾、钠、钙、镁元素的含量可用原子吸收分光光度法来测定。
This paper reports the development of the determination of trace metal Fe in doxycycline hydrochloric acid by flame atomic absorption spectrophotometry.
本文研究了盐酸脱氧土霉素中微量金属元素铁的火焰原子吸收分光光度法的测定。
Seminal plasma zinc(Zn), copper(Cu), iron(Fe), manganese(Mn) and nickel(Ni) in 17 infertile and 21 fertile men were measured by atomic absorption spectrophotometry.
采用原子吸收分光光度法,测定17例不育及21例已育男子精浆锌、铜、铁、锰和镍含量。
Methods The contents of dissolvable zinc salt in deodorants extracted by pure water were detected by flame atomic absorption spectrophotometry.
方法用纯水提取除臭剂等化妆品中可溶性锌盐,再用火焰原子吸收分光光度法测定其含量。
Methods The atomic absorption spectrophotometry(AAS) was used to determine the content of Pb, Cr, As, Hg and Cu in decoction and artificial gastric juice of Fluorite.
方法采用原子吸收分光光度法对紫石英在水煎液和人工胃液中铅、镉、砷、汞、铜的含量分别进行测定。
The content of trace elements in horseshoe crab plasma was determined by atomic absorption spectrophotometry.
采用原子吸收分光光度法测定了鲎血中的微量元素含量。
To determine trace copper and lead and cadmium in water by using the method of Graphite Furnace Atomic Absorption spectrophotometry in the paper.
用石墨炉原子吸收分光光度法对水中痕量铜、铅、镉样品进行测定。
The content of magnesium in 10 kinds of Chinese traditional medicine for curing cerebrovascular disease was determined by atomic absorption spectrophotometry.
采用原子吸收分光光度法测定了10种脑血管药物中镁的含量。
Method: The wet digestion and flame atomic absorption spectrophotometry were employed.
方法:采用湿法消化,火焰原子吸收分光光度法测定。
Arsenic is separated from the bismuth matrix by ion exchange method and determined by hydride generation atomic absorption spectrophotometry.
该方法用离子交换将砷同基体铋分离,然后用氢化物发生原子吸收光谱法测定。
Atomic absorption spectrophotometry was used to determine the serum zinc concentration in rabbits.
用原子吸收分光光度法测定兔血清锌浓度。
The contents of Cu, Zn and Fe in different muscle tissues of pigs and chickens were determined by flame atomic absorption spectrophotometry(FAAS).
本实验利用火焰原子吸收法对猪和鸡不同部位肌组织中铜、锌和铁含量进行了测定。
The paper introduces a direct measurement on trace metal elements of strontium and barium in organic liquid phase by atomic absorption spectrophotometry.
本文主要介绍有机相溶液痕量金属无素锶、钡的原子吸收光谱直接测定法。
The method for the determination of trace mercury in water samples by hydride generation atomic absorption spectrophotometry after cloud point extraction was proposed.
提出了浊点萃取预富集氢化物发生-原子吸收光谱法测定痕量汞的新方法。
Objective To establish a method for indirect determination of the sulfate in drinking water by atomic absorption spectrophotometry.
目的探讨原子吸收间接法测定饮用水中硫酸盐的方法。
In atomic absorption spectrophotometry, the calibration curve is always required.
原子吸收光谱法进行样品测定时,必须制作校准曲线。
Method:The hair content of Zn, Fe and Cu in 170 children of RRTI and 150 normal children was determined by atomic absorption spectrophotometry.
方法:应用原子吸收分光光度法测定了儿童反复呼吸道感染(RRTI)组和对照组头发锌、铁、铜的含量。
The content of Pb in 10 kinds of Chinese traditional medicine for curing cerebrovascular was determined by atomic absorption spectrophotometry.
采用原子吸收分光光度法测定了十种治疗脑血管疾病的中成药中铅含量。
Contents of MMC and magnetic fluid in the magnetic pro-drug were measured by gel filtration chromatography and atomic absorption spectrophotometry, respectively.
产物经葡聚糖凝胶柱分离紫外分光光度法和原子吸收分光光度法分别测定其丝裂霉素含量和磁流体含量。
Methods:To determinate the total sodium in hemofiltration replacement fluid by atomic absorption spectrophotometry and appraise the uncertainty according to JJF1059-1999.
方法:用原子吸收分光光度法测定血液滤过置换液中总钠含量,并根据《测量不确定度评定与表示》(JJF1059-1999)中有关规定评估其不确定度。
Method: Atomic absorption spectrophotometry was used to determine the content of trace elements in hair.
方法:采用火焰原子吸收分光光度法测定发中微量元素含量。
A determination of total chromium in environmental samples by flame atomic absorption spectrophotometry was stu***d.
研究环境样品中总铬用火焰原子吸收分光光度法测定。
In this paper, the atomic absorption spectrophotometry method was put forward to determine the Palladium content instead of spectrophotometry by experiment improvement.
提出以原子吸收法取代分光光度法测定碳钯催化剂中钯含量。
Determination of gold in industrial waste by activated carbon concentration and atomic absorption spectrophotometry;
目的建立用原子吸收分光光度法测定血红素口服液中铁的含量的方法。
原子吸收分光光度法(Atomic Absorption Spectrophotometry,AAS)是一种基于气态基态原子对特征电磁辐射吸收作用的定量分析技术。该方法利用特定元素原子在高温下吸收特定波长光的特性,通过测量光强度衰减程度来推算样品中元素的浓度,具有ppb级(十亿分之一)的检测灵敏度。
其工作原理遵循朗伯-比尔定律(Lambert-Beer Law): $$ I = I0 e^{-k u N l} $$ 式中$I0$为入射光强度,$I$为透射光强度,$k u$为吸收系数,$N$为原子浓度,$l$为吸收层厚度。通过标准曲线法即可定量未知样品浓度。
该技术广泛应用于环境监测(如水质重金属检测)、食品安全(食品中微量元素分析)和临床医学(血铅含量测定)等领域。根据美国材料与试验协会ASTM E177标准,现代原子吸收光谱仪配备空心阴极灯作为光源,采用火焰原子化或石墨炉原子化系统,可检测70多种金属元素。
相较于其他光谱分析方法,AAS具有选择性好、抗干扰能力强的优势。国际纯粹与应用化学联合会(IUPAC)在《分析化学术语纲要》中明确指出,该方法通过电子跃迁原理实现元素特异性检测,是痕量金属分析的金标准之一。
atomic absorption spectrophotometry(原子吸收分光光度法)是一种用于测定样品中金属元素含量的仪器分析方法。以下是详细解释:
当光源发射的待测元素特征谱线通过原子化器中的基态原子蒸气时,基态原子会选择性吸收特定波长的光,吸收强度与元素浓度成正比(朗伯-比尔定律)。公式表示为: $$ A = -lg frac{I}{I_0} = KCL $$ 其中,( A )为吸光度,( K )为常数,( C )为浓度,( L )为光程。
主要用于环境监测、食品安全、医药、冶金等领域中的金属元素定量分析。
如需更完整信息,可参考原子吸收光谱法相关教材或仪器说明书。
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