contaminant

常见例句

A contaminant, identified as oversulfated chondroitin sulfate, slipped through the usual testing and was recognized only after more sophisticated tests were used.
一种污染物，含过量硫酸盐的硫酸软骨素通过了常规的检验，仅在使用更加复杂的检验方法后才被发现。
Each of the membrane technologies is essentially a filtration process in which contaminant ions are filtered from solution using a membrane with very small water passages.
这些膜技术本质上都是一个过滤程序，就是用一个有非常细小水通道的膜片把污染物离子从溶液里过滤掉。
According to data reported so far, radioactive iodine is the main contaminant and concentrations in some food samples have been detected at levels above the Japanese regulatory limits.
根据迄今报告的数据，放射性碘是主要污染物，而且一些食物样本中检测到的放射性物质已经超过日本规定的水平。

For example, contaminant removal may include the separation of unwanted materials like electronics, PVC and minerals.
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The difference is that plastics with their accumulated contaminant load are directly ingestible by organisms.
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Environmentalists argue that fracking is a serious groundwater contaminant, a claim supported last week by leading Democrats.
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