CAJ | 학술논문

采用干灰化法、湿式消解法和微波消解法对稻壳生物质进行了预处理，通过火焰原子吸收光谱法(FAAS)对不同预处理方法得到稻壳处理液中的钾元素含量进行了测定，为避免钾原子电离干扰的影响，加入了消电离剂．结果表明：加入500,μg/mL CsCl 溶液可基本消除 K+溶液测量过程中钾原子的电离干扰；稻壳样品经 HNO3干灰化法、HNO3-H2O2湿式消解法和 HNO3-H2O2微波消解法处理后，测定的稻壳中钾元素含量分别为0.638,4%、0.760,4%和0.778,6%；湿式消解法的实验结果重现性好，相对标准偏差仅为0.17%，且分析仪器简单，综合考虑，湿式消解法的效果优于干灰化法和微波消解法．
채용간회화법、습식소해법화미파소해법대도각생물질진행료예처리，통과화염원자흡수광보법(FAAS)대불동예처리방법득도도각처리액중적갑원소함량진행료측정，위피면갑원자전리간우적영향，가입료소전리제．결과표명：가입500,μg/mL CsCl 용액가기본소제 K+용액측량과정중갑원자적전리간우；도각양품경 HNO3간회화법、HNO3-H2O2습식소해법화 HNO3-H2O2미파소해법처리후，측정적도각중갑원소함량분별위0.638,4%、0.760,4%화0.778,6%；습식소해법적실험결과중현성호，상대표준편차부위0.17%，차분석의기간단，종합고필，습식소해법적효과우우간회화법화미파소해법．
Potassium contents in the treated solutions obtained from rice husk after pretreatment,by using dry ashing,wet digestion and microwave digestion,were determined with flame atomic absorption spectrometry(FAAS). In order to avoid ionization interference of potassium atoms,a deionization agent was added to the treated solutions. The results show that 500,μg/mL CsCl could almost eliminate the potassium atom ionization interference. Potassium content in the rice husk pre-treated through dry ashing by using HNO3 was 0.638,4%. However,the potassium contents in the treated rice husk through wet digestion and microwave digestion were 0.760,4% and 0.778,6%,respectively. The experimental values of potassium content derived from wet digestion were well reproducible and highly stable,and the relative standard deviation(RSD)of the data was only 0.17%. Wet digestion method is suggested all because the required instrument for wet digestion was simpler and more facilitating compared to the others.