重鉻酸鉀法測(cè)定化學(xué)需氧量的不確定度評(píng)估

重鉻酸鉀法測(cè)定化學(xué)需氧量的不確定度評(píng)估
白曉琳沈陽(yáng)工業(yè)大學(xué)石油化工學(xué)院,遼寧遼陽(yáng)111003摘　要:重鉻酸鉀法測(cè)定化學(xué)需氧量是常用的測(cè)定化學(xué)需氧量的方法,也是國(guó)家標(biāo)準(zhǔn)GB11914-89中規(guī)定的方法,但對(duì)該方法的不確定度的計(jì)算尚未見報(bào)道.為此,用不確定度這一概念對(duì)重鉻酸鉀法測(cè)定化學(xué)需氧量中不確定度的來(lái)源進(jìn)行了鑒別和分析,并針對(duì)一次測(cè)定結(jié)果對(duì)不確定度的大小進(jìn)行了定量.[著者文摘]

關(guān)鍵詞:重鉻酸鉀法 測(cè)定 化學(xué)需氧量 不確定度 評(píng)估
分類號(hào):　X830.3[免標(biāo)]文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1672-4410（2006）02-0120-04欄目信息：
相關(guān)文獻(xiàn):主題相關(guān)

Evaluation of uncertainty in determination of chemical oxygen demand-dichromate methodBAI Xiao-lin School of Petrochemical Engineering, Shenyang University of Technology, Shcnyang 111003, ChinaAbstract:Dichromate method is a common method to determine chemical oxyen demand, which is also the stipulated method in state standard GB11914-89,but the calculation of its uncertainty was never reported. Thereforce, the concept of uncertainty was used to identify and analyze the sources of uncertainty in dichromate method of determining chemical oxyen demand. Aimed at one determination result, the uncertainty scale was quantified.[著者文摘]

Key words:dichromate method ; determination ; COD; uncertainty ; evaluation