北方环境
北方環境
북방배경
INNER MONGOLIA ENVIRONMENTAL SCIENCES
2013年
5期
45-46
,共2页
总氮空白值%过硫酸钾%不同试验用水
總氮空白值%過硫痠鉀%不同試驗用水
총담공백치%과류산갑%불동시험용수
total nitrogen blank value%Potassium persulfate%Test use water
本研究以水中总氮空白值为研究对象,不同厂家的过硫酸钾和不同试验用水条件下的总氮空白的变化规律。研究结果表明:无氨水和二次水蒸出来的总氮空白明显低于一次水蒸出来的总氮空白;这跟蒸馏水纯度有关系,一次水含有氨,所以消解时蒸馏水中的氨会被氧化,从而导致空白值偏高。同样有的厂家的过硫酸钾纯度不高,所以导致空白值高。
本研究以水中總氮空白值為研究對象,不同廠傢的過硫痠鉀和不同試驗用水條件下的總氮空白的變化規律。研究結果錶明:無氨水和二次水蒸齣來的總氮空白明顯低于一次水蒸齣來的總氮空白;這跟蒸餾水純度有關繫,一次水含有氨,所以消解時蒸餾水中的氨會被氧化,從而導緻空白值偏高。同樣有的廠傢的過硫痠鉀純度不高,所以導緻空白值高。
본연구이수중총담공백치위연구대상,불동엄가적과류산갑화불동시험용수조건하적총담공백적변화규률。연구결과표명:무안수화이차수증출래적총담공백명현저우일차수증출래적총담공백;저근증류수순도유관계,일차수함유안,소이소해시증류수중적안회피양화,종이도치공백치편고。동양유적엄가적과류산갑순도불고,소이도치공백치고。
This article takes total nitrogen blank value in water as the research object , considers the change law of total nitrogen blank value with potassium persulfate from different manufacturers and different test water conditions .The results showed that:the total nitrogen blank value of non -ammonia water and secondary distilled water is significantly lower than that of once distilled water ;it has a relationship with the distilled water purity, once distilled water containing ammonia , so the ammonia in distilled water will be oxidized when digested , re-sulting in higher blank value.The purity of potassium persulfate from some manufacturers is low , also resulting in higher blank value .