摘要:

采用(yong)干(gan)法灰化和微(wei)波(bo)(bo)消解兩(liang)(liang)(liang)種(zhong)(zhong)(zhong)樣(yang)品分(fen)(fen)解方法處(chu)(chu)理廣東(dong)省某鉛鋅(xin)冶煉廠(chang)布袋試樣(yang),用(yong)火焰(yan)原子吸(xi)收光譜法測(ce)定樣(yang)品中Cu、Zn、Pb、Cr、Ni、Cd6種(zhong)(zhong)(zhong)重(zhong)金屬(shu)元素(su)(su)含量.同(tong)時用(yong)兩(liang)(liang)(liang)種(zhong)(zhong)(zhong)前處(chu)(chu)理方法對國家一級標準(zhun)(zhun)物(wu)質進行測(ce)定,與標準(zhun)(zhun)值比對,驗證兩(liang)(liang)(liang)種(zhong)(zhong)(zhong)方法的(de)準(zhun)(zhun)確度(du)和精(jing)密度(du).結(jie)果表(biao)明,不同(tong)的(de)樣(yang)品分(fen)(fen)解方法對各(ge)重(zhong)金屬(shu)元素(su)(su)的(de)測(ce)定結(jie)果會(hui)產生不同(tong)程度(du)的(de)影響.微(wei)波(bo)(bo)消解法相對于(yu)干(gan)法灰化法的(de)準(zhun)(zhun)確度(du)高,試劑利用(yong)率(lv)高,有(you)利于(yu)元素(su)(su)的(de)分(fen)(fen)析.干(gan)法灰化和微(wei)波(bo)(bo)消解兩(liang)(liang)(liang)種(zhong)(zhong)(zhong)前處(chu)(chu)理方法的(de)精(jing)密度(du)(RSD,n=11)均小(xiao)于(yu)5%.

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