环境科学导刊
環境科學導刊
배경과학도간
ENVIRONMENTAL SCIENCE SURVEY
2015年
3期
102-106
,共5页
COD%测量%消解%准确度%影响
COD%測量%消解%準確度%影響
COD%측량%소해%준학도%영향
COD%test%digestion%accuracy%impact
介绍了化学需氧量（COD）测量中不同消解方法及其特点。通过实验，对比了国标法、微波消解法、密封消解法对实验结果的影响。实验结果表明：在 COD 含量较低的情况下，国标法和微波消解法测定的结果具有较高的可信度；而在 COD 含量较高的情况下，微波消解法和密封消解法可获得令人满意的结果。
介紹瞭化學需氧量（COD）測量中不同消解方法及其特點。通過實驗，對比瞭國標法、微波消解法、密封消解法對實驗結果的影響。實驗結果錶明：在 COD 含量較低的情況下，國標法和微波消解法測定的結果具有較高的可信度；而在 COD 含量較高的情況下，微波消解法和密封消解法可穫得令人滿意的結果。
개소료화학수양량（COD）측량중불동소해방법급기특점。통과실험，대비료국표법、미파소해법、밀봉소해법대실험결과적영향。실험결과표명：재 COD 함량교저적정황하，국표법화미파소해법측정적결과구유교고적가신도；이재 COD 함량교고적정황하，미파소해법화밀봉소해법가획득령인만의적결과。
The national standard method is always applied to test Chemical oxygen demand (COD).Nowadays, more and more methods are used,such as microwave digestion method,sealed digestion method and so on.The two methods were compared with the national standard method in the paper.It was showed that the national stand-ard method and microwave digestion method presented higher accuracy when the content of COD was low.Howev-er,the results by sealed digestion and microwave method were much better with high concentration of COD.
