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【答案】应助回帖
★ sltmac(金币+1): 谢谢交流~ 2011-08-08 11:51:29 qhd511(金币+10, 翻译EPI+1): 感谢版主的及时帮助。 2011-08-08 12:30:39
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However, the compositions of sewage and sludge samples are more complicated than those of the former samples due to the high concentration organic matters.Thus,an appropriate pretreatment scheme is needed to ensure that HG-AFS method can be applied to determine the total arsenic. In addition, the speediness, reliablity and low loss of the optimized and perfect sample pretreatment method should be considered. Up to now, there have been no relevant reports on the determinations of total As in sewage and sludge samples by using the same method of complete digestion. |
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