化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2013年
4期
72-74,75
,共4页
色度%浊度%分光光度法
色度%濁度%分光光度法
색도%탁도%분광광도법
colority%turbidity%spectrophotometry
水样色度的测定目前主要采用铂钴色标目视比色法和稀释倍数法,但对于较清洁的水样,传统的目视比色法过度依赖人为主观判断,色度测定结果存在较大误差。利用350,540 nm双波长分光光度法,以铬钴色标作为标准液,研究浊度对色度检测结果的影响,找出相关性,建立分析方法。该方法在一定的浊度范围内,色度检测结果具有良好的线性(r2>0.999),对污水样品测定结果的相对标准偏差小于1%(n=7)。该法不但可以克服一定浊度的干扰,消除人为误差,还可提高分析结果的准确度。
水樣色度的測定目前主要採用鉑鈷色標目視比色法和稀釋倍數法,但對于較清潔的水樣,傳統的目視比色法過度依賴人為主觀判斷,色度測定結果存在較大誤差。利用350,540 nm雙波長分光光度法,以鉻鈷色標作為標準液,研究濁度對色度檢測結果的影響,找齣相關性,建立分析方法。該方法在一定的濁度範圍內,色度檢測結果具有良好的線性(r2>0.999),對汙水樣品測定結果的相對標準偏差小于1%(n=7)。該法不但可以剋服一定濁度的榦擾,消除人為誤差,還可提高分析結果的準確度。
수양색도적측정목전주요채용박고색표목시비색법화희석배수법,단대우교청길적수양,전통적목시비색법과도의뢰인위주관판단,색도측정결과존재교대오차。이용350,540 nm쌍파장분광광도법,이락고색표작위표준액,연구탁도대색도검측결과적영향,조출상관성,건립분석방법。해방법재일정적탁도범위내,색도검측결과구유량호적선성(r2>0.999),대오수양품측정결과적상대표준편차소우1%(n=7)。해법불단가이극복일정탁도적간우,소제인위오차,환가제고분석결과적준학도。
Eye-measurement colorimetry of platinum-cobalt color-code and dilution multiple determination are mainly used to detect the colority of water samples. However for cleaner water,the traditional method of colority determination over-depend on the subjective judgment of person,the final results of colority determination have larger deviation. Chromium-cobalt color-code as a standard solution,dual wavelength spectrophotometry of 350 and 540 nm were used to study turbidity on the results of colority determination,and the correlation was find out, an analytical method was set up. The results of colority determination had a good linearity (r2>0.999),the relative standard deviation of detection results of sewage sample was less than 1%(n=7). This method can not only overcome the interference of a certain density turbidity to eliminate human error,but also can improve the accuracy of the analysis results.