CAJ | 학술논문

针对原复合肥中有效镁测定过程中存在的操作步骤繁琐、所用试剂多、耗时长等问题，对测定方法进行了改进，即将试样提取方式由恒温振荡水浴改为超声波提取，并采用原子吸收法代替 EDTA 滴定法测定镁的含量。方法改进后，操作简单，快速准确。
침대원복합비중유효미측정과정중존재적조작보취번쇄、소용시제다、모시장등문제，대측정방법진행료개진，즉장시양제취방식유항온진탕수욕개위초성파제취，병채용원자흡수법대체 EDTA 적정법측정미적함량。방법개진후，조작간단，쾌속준학。
In connection with problems in determination of available magnesium content in compound fertilizers,such as operation steps cumbersome,too many reagents used, and time consuming,the determination method is improved,i.e.,sample extracting method is changed from constant temperature shake bath to ultrasonic extraction,and the atomic absorption method is adopted to replace EDTA titration method in determination of magnesium content.After improvement of the method,the operation is simple,rapid and accurate.