When the specimen area is larger than the mouth area, this overlay upon the ledge is a source of error, particularly for thick specimens.

当试样面积大于杯口面积时，试样在透湿杯边缘的覆盖就成为一个误差来源，尤其是对于较厚的试样。

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Conclusions the preservation method and the comet assay technique of drop whole blood specimen can be applied to the biomonitoring work of the endemic arsenism area.

结论将微量血样保存方法及微量全血彗星实验用于地方性砷中毒病区的人群监测可行。

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