河南科学
河南科學
하남과학
HENAN SCIENCE
2014年
8期
1415-1418
,共4页
肖翔群%毛予捷%伍丽平%毛玉霞%闫海富
肖翔群%毛予捷%伍麗平%毛玉霞%閆海富
초상군%모여첩%오려평%모옥하%염해부
国标%掩蔽剂%水质监测%氨氮%纳氏试剂
國標%掩蔽劑%水質鑑測%氨氮%納氏試劑
국표%엄폐제%수질감측%안담%납씨시제
national standard%masking agent%water quality monitoring%ammonia nitrogen%Nessler’s reagent
从生产工艺质量稳定性以及掩蔽能力对比研究了14个厂家包括酒石酸钾钠掩蔽剂在内的5种化合物，指出酒石酸钾钠生产工艺存在质量不稳定风险，不宜作为国标纳氏试剂分光光度法测定水中氨氮的掩蔽剂，EDTA四钠导致纳氏试剂不显色也不宜作为掩蔽剂使用，其余3种化合物综合掩蔽性能优于酒石酸钾钠，宜作为国标测定方法的掩蔽剂。
從生產工藝質量穩定性以及掩蔽能力對比研究瞭14箇廠傢包括酒石痠鉀鈉掩蔽劑在內的5種化閤物，指齣酒石痠鉀鈉生產工藝存在質量不穩定風險，不宜作為國標納氏試劑分光光度法測定水中氨氮的掩蔽劑，EDTA四鈉導緻納氏試劑不顯色也不宜作為掩蔽劑使用，其餘3種化閤物綜閤掩蔽性能優于酒石痠鉀鈉，宜作為國標測定方法的掩蔽劑。
종생산공예질량은정성이급엄폐능력대비연구료14개엄가포괄주석산갑납엄폐제재내적5충화합물，지출주석산갑납생산공예존재질량불은정풍험，불의작위국표납씨시제분광광도법측정수중안담적엄폐제，EDTA사납도치납씨시제불현색야불의작위엄폐제사용，기여3충화합물종합엄폐성능우우주석산갑납，의작위국표측정방법적엄폐제。
A comparative study on the quality stability in produce process and the masking ability of five compounds including the masking agent sodium potassium tartrate from 14 manufacturers. There is the risk of the quality instability in sodium potassium tartrate production process itself ,accordingly sodium potassium tartrate is not appropriate to be used as masking agent in national standard of Nessler’s reagent spectrophotometric determination of ammonia nitrogen in water. Tetrasodium EDTA is not appropriate to be used as masking agent because it cause Nessler’s reagent without colour reaction. The comprehensive masking properties of the remaining three compounds are superior to sodium potassium tartrate and is appropriate to be used as masking agent in national standard determination.
