5—（2—噻唑）偶氮—8—氨基喹啉的合成及光度法测定微量钴

合成了新试剂５－（２－噻唑）偶氮－８－氨基喹啉，测定了它的酸离解常数，并用于光度法测定微量钴。在ＣＴＭＡＢ存在下，０．０４－０．０２ｍｏｌ／ｌ ＮａＯＨ介质中，ＴＡＡＱ与Ｃｏ＾２＋形成１：３的深蓝色络合物，最大吸收峰位于６３０ｎｍ，摩尔吸光系数ε＝１．２３×１０＾５ｌ·ｍｏｌ＾－１·ｃｍ＾－１。Ｃｏ＾２＋在０－１０μｇ／２５ｍｌ范围内符合比尔定律。方法具有较好的选择性，已用于ＶＢ１２及矿石分析，结     

铁（Ⅱ）－1－（2－吡啶偶氮）－2－萘酚－TritonX－100显色体系的研究及应用

本文研究了ＴｒｉｔｏｎＸ一１００存在下，铁（Ⅱ）与１－（２－吡啶偶氮）－２－萘酚（ＰＡＮ）的显色反应，在ＰＨ值３．０～９．０范围内，配合物的最大吸收波长为７４０ｎｍ，表现摩尔吸光系数ε＝１．６×１０￣４Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），铁量在０～８０ｕｇ／２５ｍｌ范围内遵守比耳定律。该法用于纯铝、铝合金、铝基稀土合金中微量铁的测定，结果准确。     

钼酸盐－丁基罗丹明B光度法测定痕量钌

研究了用钼酸盐和丁基罗丹明Ｂ（ＢＲＢ）比色测定实际样品中的钌。离子缔合物的最大吸收位于５７０ｎｍ，摩尔吸光度ε值为１．０１×１０６Ｌ·ｍｏｌ－１·。ｃｍ－１．桑德尔灵敏度０．１１ｎｇｃｍ－２．遵守比耳定律范围０～１．４μｇ／２５ｍｌ，测定极限３．３ｎｇ／ｍｌ（ｍ＝８），标准偏差８．３×１０－４～８．７×１０－３，相对标准偏差０．８％～３．３％。考察了４３种共存离子的容许量。本法已用于某些岩矿和冶金产品中钌的测定。     

磷钼蓝光度法测定电解金属锰中的痕量磷

本文用稀磷酸－高氯酸对试样进行前处理，试验了磷钼蓝显色条件及配合物的光度性质＾［１￣６］。酸度条件：Ｃ（ＨＣ１Ｏ４）为０．１７ｍｏｌ·Ｌ＾－１、Ｃ（Ｈ２ＳＯ４）为０．０２０ｍｏｌ·Ｌ＾－１。磷０￣１０μｇ·５０ｍｌ＾－１遵守比耳定律，ε７２０为２．００×１０＾５（２８Ｃ），与标准加入法的分析结果相符。     

以钴了子为探针测定半胱氨酸的研究

详细研究了半胱氨酸与钴（Ⅱ）在ＮＨ４ＣＬ－ＮＨ４ＯＨ介质中的相互使用，建立了快速测定半胱氨酸的分光光度法，方法检出限２．８×１０＾－６ｍｏｌ·Ｌ＾－１，线性范围０－２．×１０＾－４ｍｏ１·Ｌ＾－１，摩尔吸光系数７．９８×１０＾３Ｌ·ｍｏｌ＾－１·ｃｍ＾－１。用于尿液中半胱氨酸的测定，结果满意。     

3,5-二溴-4-二甲氨基过溴化物苯基荧光酮与锆络合物的分光光度法研究

用合成的新试剂３，５－二溴－４－二甲氨基过溴化物苯基荧光酮作显色剂，以分光光度法测定微量锆。在阳离子表面活性剂ＣＴＭＡＢ存在下，０．４ｍｏｌ／ＬＨＣｌ介质中，试剂与锆形成１：４的红色络合物，其最大吸收波长在５３０ｎｍ处，锆含量在０～１０μｇ／２５ｍｌ范围内服从比尔定律，表观摩尔吸光系数为１．２５×１０５Ｌ·ｍｏｌ－１·ｃｍ－１．方法简便、快速、灵敏度高，已用于铝合金样品中微量锆的测定，获得满意的结果。     

MnO2·xH2O共沉淀分离5—Br—PADAP—OP水相光度法测定Cu部的Sb

基于ＨＮＯ２介质中ＭｎＯ２·ｘＨ２Ｏ能分离富集锑继而利用Ｓｂ（Ⅲ）与ＫＩ的铬阴离子［ＳｂＩ４］＾－在１．１￣１．８ｍｏｌ／Ｌ的Ｈ２ＳＯ４介质中与偶氮类显色剂５－Ｂｒ－ＰＡＤＡＰ形成的离子缔合物，在乳化剂ＯＰ存在下，有较高灵敏度与选择性，可不经萃取分离水相光度法测定Ｃｕ中锑。线性范围０￣４０μｇ／２５ｍＬ，ε６１０＝４．３×１０＾４。     

阳离子型微乳液介质中铜（Ⅱ）──苯基荧光酮的增敏试验

本文研究了在阳离子型微乳液介质中，用苯基荧光酮测定铜（Ⅱ）的吸光光度法。试验结果表明，以阳离子型Ｏ／ＷＣＴＭＡＢ／ｎ—Ｃ５Ｈ１１ＯＨ／ｎ—Ｃ７Ｈ１６／Ｈ２Ｏ微乳液为介质，Ｃｕ（Ⅱ）－ＰＦ的ε５７２＝１．３７×１０５Ｌ·ｍｏｌ－１·ｃｍ－１，与以水为为介质ε５４０＝４．３×１０４Ｌ·ｍｏｌ－１·ｃｍ－１及相同含量ＣＴＭＡＢ０／Ｗ胶束溶液为介质ε５７２＝８．９×１０４Ｌ·ｍｏｌ－１·ｃｍ－１比较，测定灵敏度显著提高，并且某些实验条件更加宽容。经投入使用，结果令人满意。     

二溴甲基偶氮羧胂直接光度法测定富钙材料中的稀土

二溴甲基偶氮羧胂在０．１６－０．６ｍｏｌ／Ｌ的盐酸介质中能与铈组形成蓝色的配合物，摩尔吸光系ε６３０（Ｌａ－Ｇｄ）为（１．２５－１．４１）×１０＾５Ｌ．ｍｏｌ＾－１ｃｍ＾－１。铈在０－１２μｇ－２５ｍＬ符合比耳定律。由于乙醇和表面活性剂ｔｒｉｔｏｎＸ－１００的存在，方法具有良好的选择性，４０ｍｇＣａ＾２＋，１０ｍｇＦｅ＾３＋，３ｍｇＴｉ＾４＋不干扰测定。本法用来测定富钙材料中的铈组稀土，结果令人满     

荧光级氧化铕中氧化铅的发射光谱分析

采用发射光谱法对荧光级氧化铕中氧化铅进行定量分析研究。着重对缓冲剂的选择、摄谱条件等进行了试验，确定了最佳分析条件。测定范围：０．０３％￣０．０００３％，标准偏差：１×１０＾－３￣２．４×１０＾－４，变动系数为６．２５％￣１４．５１％。     

China's Major Non-ferrous Metals Imports & Exports

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Zinc Production by Province in 2014

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80% of Chinese Firms Purchasing Overseas Mines Ended up in the Red

<正>Minmetals Resources acquired the world’s largest copper mine under construction for USD5.85 billion.One after another,listed companies Jien Nickle,China Molybdenum and Chihong Zinc and Germanium raised money to get involved in overseas mining projects…SOEs and private enterprises are engaged in a frenzy of overseas mine purchasing.A reporter with Economic     

Copper Processing Profit Dropped Sharply,Copper Consumption Will Face Impact in the Second Half of the Year

正Judging from China’s copper consumption field,the biggest consumption unit is electric power,which accounts for 47%of total consumption;it is followed by light industry sector,including household electrical appliance,machinery,durable goods and hardware etc,which accounts for 22%of total consumption;followed by transportation field,     

Central Geological Prospecting Fund Newly Added 16.47 Million Tonnes of Bauxite in 2013

正In 2013,the Central Geological Prospecting Fund(CGPF)Project newly discovered 15 ore fields,including 3 large above ore fields,and 5medium sized ore fields.The reporter learned from the recently published"Annual Report of Central Geological Prospecting Fund Project(2013)"that,from 2006 to 2013 the CGPF     

Manufacturers of Copper Tube for Central Air Conditioner Use Face Mounting Pressure in the Final Quarter of the Year

正This year,the investment growth rate of real estate industry continued to slow down,sold area of commercial housing also dropped significantly,which brought huge pressure to the domestic air conditioning manufactures.In the first half of the year,by relying on high growth in national financial expenditure,along with investment in public infrastructure     

Xinjiang Ranks No.1 in Production of Primary Aluminum in China

正Kang Yi,Honorary Chairman of China Nonferrous Metals Industry Association,said recently at the Forum on Development of the Non-ferrous Metals Industry in Central and Western China held in Zhengzhou that,as more and more electrolytic aluminum factories in Xinjiang came into operation,the electrolytic aluminum output of Xinjiang had reached2,275,000 tons in the first 7 months this year,     

Shenhuo Coal Industry and Electricity Power Completed800,000 t/a Aluminum Project in Xinjiang

正"Xinjiang project has been completed according to schedule,but total completion and total start of production are two different concepts,after completion it still needs a gradual process of reaching production target."On the morning of November 3,Shenhuo Coal Industry and Electricity Power told investors the above statement on the investor interaction platform.     

Guangdong Metal Transaction Center has Become the Second Largest Precious Metal Transaction Platform Nationwide

正The reporter learned from Guangdong Province Precious Metal Transaction Center that in 2013the Center maintained healthy development momentum,and had become the second largest precious metal transaction platform in China in terms of market size;currently Guangdong is quickening steps of financial innovation for the Center,aiming to build a transaction center with international core competitiveness.     

Seven Rare Earth Projects Involving Close to 3 Billion Yuan Investment Landed In the HighTech Zone

正On May 22,Baotou Rare Earth Industry Cooperation Consultation MeetingProject Agreement-signing Ceremony was held in Ningbo,nearly 40 enterprises from Ningbo,Guangdong,Hunan,and Shanxi participated in project consultation.After multi-lateral communication,agreements were signed for a total of 7 rare earth projects successfully.