腐植酸
腐植痠
부식산
Humic Acid
2015年
5期
25-28
,共4页
腐植酸尿素%缩二脲%测定%分光光度法
腐植痠尿素%縮二脲%測定%分光光度法
부식산뇨소%축이뇨%측정%분광광도법
humic acid urea%biuret%determination%spectrophotometric method
腐植酸尿素因其含有腐植酸，在参照尿素中缩二脲的测定方法测定缩二脲含量时，存在严重的干扰。利用腐植酸遇高价金属离子絮凝的特点，使用硫酸铝絮凝沉淀腐植酸，消除了腐植酸对缩二脲测定的干扰，建立了腐植酸尿素中缩二脲含量的测定方法，通过颜色校正实验、精密度实验和回收率实验，验证了该测定方法准确可靠。
腐植痠尿素因其含有腐植痠，在參照尿素中縮二脲的測定方法測定縮二脲含量時，存在嚴重的榦擾。利用腐植痠遇高價金屬離子絮凝的特點，使用硫痠鋁絮凝沉澱腐植痠，消除瞭腐植痠對縮二脲測定的榦擾，建立瞭腐植痠尿素中縮二脲含量的測定方法，通過顏色校正實驗、精密度實驗和迴收率實驗，驗證瞭該測定方法準確可靠。
부식산뇨소인기함유부식산，재삼조뇨소중축이뇨적측정방법측정축이뇨함량시，존재엄중적간우。이용부식산우고개금속리자서응적특점，사용류산려서응침정부식산，소제료부식산대축이뇨측정적간우，건립료부식산뇨소중축이뇨함량적측정방법，통과안색교정실험、정밀도실험화회수솔실험，험증료해측정방법준학가고。
The existence of humic acid induce to serious interference when measuring the content of biuret in humic acid urea with the spectrophotometric determination method of biuret in urea. A new method for the determination of bi-uret content in humic acid urea was established that using the characteristics of humic acid lfocculation induced by high valence metal ions. In this method, aluminum sulfate was used to lfocculate and to precipitate humic acid in humic acid urea so as to eliminate the interference of humic acid in determinating of biuret content. The reliability of this method was veriifed by color correction test, precision experiment and recovery rate experiment.
