CAJ | 학술논문

以干红葡萄酒为原料,对其中残留二氧化硫的3种测定方法——直接碘量法、盐酸副玫瑰苯胺法、碘量蒸馏法进行比较研究.结果表明:直接碘量法测定过程快速简易,但误差较大;盐酸副玫瑰苯胺法试验操作繁琐,显色体系不稳定、重现性差,测定结果值较低;碘量蒸馏法操作方法较简易,测定结果值亦比较理想,重现性好,不存在颜色干扰现象,是目前测定干红葡萄酒中残留二氧化硫的较理想方法,也是以上3种方法中最好的.
이간홍포도주위원료,대기중잔류이양화류적3충측정방법——직접전량법、염산부매괴분알법、전량증류법진행비교연구.결과표명:직접전량법측정과정쾌속간역,단오차교대;염산부매괴분알법시험조작번쇄,현색체계불은정、중현성차,측정결과치교저;전량증류법조작방법교간역,측정결과치역비교이상,중현성호,불존재안색간우현상,시목전측정간홍포도주중잔류이양화류적교이상방법,야시이상3충방법중최호적.
Contents of residual sulfur dioxide in dry red wine were tested by three different methods——direct iodometric method, pararosaniline hydrochloride method and iodometric distillation method. Direct iodometric method was a rapid and easy method, but with larger standard deviation than the other two methods. The pararosaniline hydrochloride method was tedious and unstable with poor reproducibility and lower value. The iodometric distillation method was simple and stable with good reproducibility and no interference. It is the best way among the three methods to determine the residual sulfur dioxide in dry red wine.