ultra trace

[ˈʌltrə tres][ˈʌltrə treis]

超痕量

  • Progress on Speciation Analysis Techniques of Trace and Ultra Trace Mercury in Aquatic Environment

    水环境中痕量、 痕量 元素汞的形态分析技术进展

  • It can be used for chemiluminescence analysis which has a simple instrument and high sensitivity et al * When combined with flow injection analysis to achieve rapid measurement and automate operating it would became a trace and ultra trace analysis technology .

    利用该现象可用于化学发光分析法,此法有着仪器简单、操作方便,灵敏高度等优点,与流动注射相结合,能够实现快速测量,且易实现自动化,是一种痕量和 痕量分析技术。

  • Ions in environmental water such as calcium and magnesium do not interfere with the extraction of the ultra trace pesticide their enrichment factors are in the range from 238 to 247 .

    环境水中的钙、镁等主要离子不干扰萃取,富集倍数为 238~247

  • A Novel Micro Drop Solvent Extraction Technique Combined with Low Temperature Electrothermal Vaporization ICP-AES for Ultra Trace Element Analysis

    微滴溶剂萃取/低温电热蒸发ICP-AES联用新技术用于 痕量元素分析

  • Spectrophotometric Determination of ultra trace amounts of molybdenum in soil by a new catalytic reaction

    土壤中 痕量钼的催化光度测定法

  • A highly selective and rapid new anodic adsorptive voltammetric method has been developed for the determination of ultra trace amount of ciprofloxacin with a carbon paste electrode ( CPE ) .

    报道了用碳糊电极阳极吸附伏安法 测定 环丙沙星的新方法。

  • Determination of trace and ultra trace amounts of gold in natural water

    天然水中痕量 痕量金的分析

  • Ultra trace analysis of rhodium and iridium in geochemical exploration sample

    地球化学勘探样品 中超 痕量铑、铱的分析 测定

  • Spectrophotometric Determination of ultra trace amounts of uranium

    痕量铀的分光光度法测定

  • Direct Determination of Ultra Trace Lithium in Serum by Controlled-Temperature Graphite Furnace of Atomic Absorption Spectrophotometry

    可控高温石墨炉原子吸收法测定人体血清 中超 痕量

  • Thus it was a rapid accurate and high sensitive method of ultra trace mercury analysis in water . 4 .

    结果表明,本方法是一种快速、准确、高灵敏的水中 痕量汞的测定方法。

  • Perturbation Effect of Ultra Trace Hydrogen Peroxide on the MnSO_4-KBrO_3-Diacetone Oscillating Chemical Reaction

    痕量H2O2对MnSO4-KBrO3-乙酰丙酮化学振荡体系的扰动

  • Determination of Ultra Trace Vanadium by Catalytic Fading Chronometry

    目视催化褪色计时法测定 痕量钒的研究

  • Speciation Analysis of Ultra Trace Levels of Mercury in Natural Waters

    天然水体中 痕量汞的形态分析方法研究

  • The general aspects in the determination of trace and ultra trace gold in natural water are reviewed . Being and Trace trace analysis ;

    本文系统地评述了天然水中痕量 痕量金的分析。

  • Based on the catalytic effect of Zn (ⅱ) ion on the redox reaction of eriochrome black T ( EBT ) with H 2O 2 a new kinetic spectrophotometric method has been developed for the determination of ultra trace amounts of Zn (ⅱ) .

    依据Zn2+对H2O2氧化铬黑T(EBT)褪色反应的催化行为,建立了测定 痕量锌的催化动力学分析法。

  • Progress on Speciation Analysis of Trace and Ultra Trace Elements in Environmental / Biological Samples by Chromatograph Hyphenated Techniques

    色谱联用技术在环境和生物样品中痕量 痕量元素形态分析研究进展

  • Determination of Ultra Trace Rare Earth Elements in of Pig 's Bone and Teeth by ICP-AES

    ICP-AES法测定猪骨、猪牙 中超 微量稀土元素

  • Determination of ultra trace amounts of iron in chemical reagents with a new indicator reaction & System of hydrogen peroxide-acid chrome blue K

    利用铁的新指示反应测定化学试剂中的 痕量铁&酸性铬蓝K-H2O2体系

  • The paper introduces a method of analyzing ultra trace rhodium and iridium in geochemical exploration sample which has high sensitivity and low space value . The paper discusses the influence of the main reagent on the analysis .

    文中介绍了一个灵敏度高、空白值低的测定地球化学勘探样品 中超 痕量铑、铱的分析方法,并讨论了主要试剂条件的影响。

  • The method increased the speed of sample analysis and reduced the cost of determination which was very rapid accurate for ultra trace mercury analysis in soil . 5 .

    结果表明:本方法提高了样品的分析速度,是一种快速、 环保、准确的测定土壤中 痕量汞的方法。