CAJ | 학술논문

对于影响热解炉–金汞齐捕集–原子吸收法测定土壤中汞的4个主要因素如分解温度、分解时间、干燥时间、干燥温度进行试验和分析，由正交试验结果可知，对测定结果的影响由大到小的次序为分解温度、分解时间、干燥时间、干燥温度，其中分解温度的影响明显大于其它3个因素。用含量范围在14～1680 ng／g的土壤和沉积物标准样品对该方法进行适用性验证，测定结果表明，对于含量大于30 ng／g的标准样品，该方法测定值与标准值相吻合，相对标准偏差不大于4.3%(n=6)。对进样量、镍舟的维护、记忆效应的消除提出了建议。
대우영향열해로–금홍제포집–원자흡수법측정토양중홍적4개주요인소여분해온도、분해시간、간조시간、간조온도진행시험화분석，유정교시험결과가지，대측정결과적영향유대도소적차서위분해온도、분해시간、간조시간、간조온도，기중분해온도적영향명현대우기타3개인소。용함량범위재14～1680 ng／g적토양화침적물표준양품대해방법진행괄용성험증，측정결과표명，대우함량대우30 ng／g적표준양품，해방법측정치여표준치상문합，상대표준편차불대우4.3%(n=6)。대진양량、얼주적유호、기억효응적소제제출료건의。
Orthogonal test was done to explain the four factor’s role,which affected the determination of mercury in soil by pyrogenic furnace–gold amalgam trap–atomic absorption spectrophotometry (PF–GAT–AAS) method. The tests results showed that the influence of decomposition temperature,decomposition time,drying time and drying temperature was gradually down,and the influence of the decomposition temperature was significantly greater than the other three factors. Soil and sediment reference materials were used to verify the method application, which content in the range of 14–1 680 ng/g. The results indicated that the values consistent with standard value of the reference materal which content more than 30 ng/g,and the relative standard deviation was less than 4.3%(n=6). The suggestions about the sample quantity,nickel boat maintenance,and elimination of memory effects were put forward.