| 化探样品中微量硼的乙基罗丹明B比色测定 |
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| 引用本文： | 邓维群,游宗保.化探样品中微量硼的乙基罗丹明B比色测定[J].岩石矿物学杂志,1983,2(2):140-142. |
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| 作者姓名： | 邓维群 游宗保 |
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| 作者单位： | 福建省地质中心实验室
(邓维群)，福建省地质中心实验室(游宗保) |
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| 摘 要： | 本文在我们过去工作的基础上对氟硼酸—乙基罗丹明B比色测定硼的方法进一步予以改进,并在试样碱熔水提液中直接以硫酸调节酸度至pH≈5以沉淀分离大量硅酸,铌、钽和其它金属氢氧化物,效果良好,能满足化探工作需要。试验部分一、试剂硼标准溶液硼酸0.572克溶于水中并稀释至
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ETHYL RHODAMINE B COLORIMETRIC METHOD FOR DETERMINATION OF TRACE AMOUNT OF BORON IN CHEMICAL EXPLORATION SAMPLES |
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| Abstract: | A new colorimetric method for the determination of trace amount of boron
with ethyl Rhodamine B as a chromogenic agent is studied.The elimination
of the interference of tantalum and diverse ions are described .Beer''s law holds
for the range of 0-6 ug B/10 ml. The recoveries obtained by the addition of
known amount of boron are nearly 100% |
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