【摘要】：在單因素試驗(yàn)基礎(chǔ)上,通過(guò)Plackett-Burman試驗(yàn)篩選及中心組合設(shè)計(jì)試驗(yàn)優(yōu)化超聲時(shí)間、超聲溫度和混酸用量三個(gè)因素對(duì)超聲輔助提取人發(fā)中鉛的影響。由響應(yīng)面法建立二次回歸模型得到最佳超聲條件為:超聲時(shí)間16 min,超聲溫度56℃,混酸體積6.50 m L。方法的相對(duì)標(biāo)準(zhǔn)偏差(RSD)為3.18%。檢出限為0.80μg·L~(-1),定量限為2.7μg·L~(-1)。t檢驗(yàn)結(jié)果表明超聲提取法和濕消解法之間無(wú)顯著性差異,因此用超聲波輔助-原子吸收光譜法測(cè)定人發(fā)中的鉛方法可行,且超聲提取法耗時(shí)短、試劑用量少。
[Abstract]:On the basis of single factor test, the effects of ultrasonic time, ultrasonic temperature and the amount of mixed acid on ultrasonic assisted extraction of lead in human hair were optimized by Plackett-Burman test and central combination design test. The optimum ultrasonic conditions are as follows: ultrasonic time is 16 min, ultrasonic temperature is 56 鈩，

本文編號(hào)：2337156