微波消解-电感耦合等离子体原子发射光谱法测定生面条中的硼
Microwave digestion-inductively coupled plasma atomic emission spectrometric determination of boron in raw noodles.
作者信息
Ziaziaris J, Kacprzak J L
机构信息
New South Wales Health Department, Division of Analytical Laboratories, Lidcombe, Australia.
出版信息
J AOAC Int. 1995 May-Jun;78(3):874-7.
Samples of raw noodles in a mixture of nitric acid and hydrogen peroxide were microwave digested in sealed tetrafluoromethaxil (PTFE TFM) vessels. The digests were diluted to volume with distilled water and quantitated by inductively coupled plasma atomic emission spectroscopy (ICP-AES). The recoveries of boron for spikes of 2.5, 250, and 500 micrograms were 88, 101, and 102%, respectively. The quantitation limit was estimated to be 1.5 mg B/kg. The method is rapid and ideally suited to large numbers of samples.
将生面条样品置于硝酸和过氧化氢的混合液中，在密封的四氟甲醚（PTFE TFM）容器中进行微波消解。消解液用蒸馏水定容，然后通过电感耦合等离子体原子发射光谱法（ICP - AES）进行定量分析。对于添加量为2.5、250和500微克的硼，回收率分别为88%、101%和102%。定量限估计为1.5毫克硼/千克。该方法快速，非常适合大量样品的分析。
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