使用DMA-80直接测汞仪测定临床样品(血液、尿和头发)中的汞含量(英文版)

上一篇 / 下一篇  2010-02-06 16:45:16/ 个人分类:元素分析

  • 文件版本: V1.0
  • 开发商: 来源网络
  • 文件来源: 网络
  • 界面语言: english
  • 授权方式: 免费
  • 运行平台: Win9X/Win2000/WinXP

Approximately 2700 – 6000 tons of mercury are released into the atmosphere annually. Once airborne, mercury can travel thousand miles from its generation point. Eventually, it precipitates onto the land and water. And once it enters water, mercury is transformed by microorganisms into methylmercury, the most toxic and dangerous for m of mercury.

Exposure to high dosage of methylmercury can cause tremors, inability to walk, convulsions and even death. Children exposed to the mercury show a variety of abnormalities such as delayed onset of walking and talking, cerebral palsy, and slowed neurological reflexes and learning abilities.

One of the best indicators of exposure to mercury is testing for concentration in hair and blood. The average concentration of mercury in non-exposed people is about 8 ppb in blood and 2 ppm in hair Mercury has traditionally been measured in hair, blood, tissues, and urine by CVAAS (Cold Vapor Atomic Absorption Spectrophotometry), which is a time and labor consuming method that relies on complicated wet chemistry sample preparation.

The DMA-80 Direct Mercury Analyzer from Milestone eliminates the sample preparation step, allowing you to rapidly process your samples in minutes, instead of the hours needed for traditional methods. This rapid testing (which is as accurate, if not more so, that CVAAS) gives you the answers you need without consuming valuable time and effort.

Other benefits include:

Process both liquid and solid samples – no matter how difficult the matrix you will get an accurate total mercury reading.

The built-in 40-position autosampler allows unattended operation for a large number of samples

The DMA-80 is portable enough to be stationed where you need it most; in your laboratory, in a portable testing van, etc...

No chemicals are used in the process so no additional toxic wastes are generated.

Completely compatible with US EPA Method 7473




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  • 建立时间: 2010-01-30
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