光谱学与光谱分析
光譜學與光譜分析
광보학여광보분석
SPECTROSCOPY AND SPECTRAL ANALYSIS
2009年
12期
3409-3411
,共3页
魏笑峰%蔡国辉%肖益鸿%詹瑛瑛%谢增鸿%魏可镁
魏笑峰%蔡國輝%肖益鴻%詹瑛瑛%謝增鴻%魏可鎂
위소봉%채국휘%초익홍%첨영영%사증홍%위가미
钯%火焰原子吸收光谱法%汽车尾气催化剂
鈀%火燄原子吸收光譜法%汽車尾氣催化劑
파%화염원자흡수광보법%기차미기최화제
Palladium%Flame atomic absorption spectrometry%Automobile exhaust catalysts
研究了火焰原子吸收光谱法测定汽车尾气净化催化剂中的贵金属Pd.对测试条件和共存元素的干扰进行了研究.采用H_2O_2+HCl溶解催化剂,在基体元素共存的条件下,直接测定催化剂中的Pd.方法线性范围为0.1~15 μg·mL~(-1),检测限为0.029 μg·mL~(-1),相埘标准偏差(RSD)在0.8%~2.5%之间,加标回收率为99.6%~101.2%.方法简便,快速,准确,满足催化剂测试要求.
研究瞭火燄原子吸收光譜法測定汽車尾氣淨化催化劑中的貴金屬Pd.對測試條件和共存元素的榦擾進行瞭研究.採用H_2O_2+HCl溶解催化劑,在基體元素共存的條件下,直接測定催化劑中的Pd.方法線性範圍為0.1~15 μg·mL~(-1),檢測限為0.029 μg·mL~(-1),相塒標準偏差(RSD)在0.8%~2.5%之間,加標迴收率為99.6%~101.2%.方法簡便,快速,準確,滿足催化劑測試要求.
연구료화염원자흡수광보법측정기차미기정화최화제중적귀금속Pd.대측시조건화공존원소적간우진행료연구.채용H_2O_2+HCl용해최화제,재기체원소공존적조건하,직접측정최화제중적Pd.방법선성범위위0.1~15 μg·mL~(-1),검측한위0.029 μg·mL~(-1),상시표준편차(RSD)재0.8%~2.5%지간,가표회수솔위99.6%~101.2%.방법간편,쾌속,준학,만족최화제측시요구.
Palladium in automotive exhaust catalyst was determined by flame atomic absorption spectrometry (FAAS). The ana-lytical conditions and the coexisting elements interference were studied. The catalyst was dissolved by the mixture of H_2O_2 and HCl. Pd in the solution was directly determined by FAAS method. The linearity of working curve ranges from 0. 1 to 15 μg·mL~(-1); the detection limit is 0. 029 μg·mL~(-1); the relative standard deviation (RSD) range is from 0. 8% to 2.5%; and the re-covery rate range is from 99. 6% to 101.2%. It is a simple and convenient method for accurate analysis of Pd in the exhaust cata-lysts.