extraction photometric method

Determination of SiO_2 in high-purity alumina by extractive spectrophotometry combined with microwave digestion;微波消解-萃取光度法测定高纯氧化铝中SiO_2的含量Fn8汉语字典

Study on the determination of ferric oxide in high-purity alumina by extractive spectrophotometry combined with microwave digestion;微波消解萃取光度法测定高纯氧化铝中Fe_2O_3的研究Fn8汉语字典

A new extractive spectrophotometry for determination of trace chromium(Ⅵ) was established.0的氯化钾-氯化氢缓冲溶液中,在常温下,六价铬与二苯偶氮羰酰肼(DPCO)反应生成稳定的络合物(六价铬与DPCO物质的量比为1∶2),在硫酸铵的作用下,该络合物中的六价铬可被聚乙二醇(PEG)相全部萃取,据此建立了测定痕量六价铬的新方法——萃取光度法。Fn8汉语字典

The stoichiometric ratio of oxidation-reduction reaction of dithizone and NO - 2、CrO 2- 4、IO - 3、BrO - 3、ClO - 3 are determined by extraction-photometric method.以萃取光度法测定了氧化性离子 NO- 2 、Cr O2 - 4、IO- 3、Br O- 3、Cl O- 3等与双硫腙的氧化还原反应的化学计量比 ,从而推出反应方程式 。Fn8汉语字典

The determination condition of gallium by extraction-photometric method with ethyl rhodamine B is studied systematically in comparision with rhodamine B and butyl rhodamine B.系统研究了乙基罗丹明Ｂ萃取光度法测镓的条件，并与罗丹明Ｂ和丁基罗丹明Ｂ法进行了比较，拟定了钒钛磁铁矿及其冶炼渣中痕量镓的分析新方法。Fn8汉语字典

A sensitive extraction-photometric method for the determination of manganese(Ⅱ)is introduced in thispaper, The 8-hydroxyquinoline as color reaction agent of Mn￣2+and the tetraethylene pentamine as shelteringagent are used in this method; The effect of the existence of a great deal of Co￣2+ on the determination of Mn￣2+is studied.本方法采用萃取光度法，使用８－羟基喹啉作Ｍｎ￣（２＋）的显色剂￣［１］，使用四乙撑五胺的水溶液作掩蔽剂，研究了在大量Ｃｏ￣（２＋）离子共存下对Ｍｎ￣（２＋）离子测定的影响。Fn8汉语字典

Extraction-Spectrophotometric Determination of Ni(Ⅱ) by Using Non-Organic Solvents非有机溶剂萃取光度法测定镍的研究Fn8汉语字典

Extraction-Spectrophotometric Determination of La(Ⅲ) by Using Non-Organic Solventsi;双水相体系萃取光度法测定镧的研究Fn8汉语字典

Determination of Trace Copper in Apparatus Oil by Extraction-Spectrophotometry;萃取光度法测定机油中微量铜的含量Fn8汉语字典

Determination of trace amount of nitrite in water samples by spectrophotometric with cloud point extraction浊点萃取光度法测定水样中亚硝酸根Fn8汉语字典

Study on the Extraction Spectrophotometry by Using Polyethylene Glycol-BCO-Ammonium Sulfate聚乙二醇-新铜试剂-硫酸铵萃取光度法测定铜Fn8汉语字典

DETERMINATION OF MICROAMOUNTS OFGOLD BY THE EXTRACTION-PHOTOMETRICMETHOD WITH ETHYL VIOLET-BYTYL ACETATE乙基紫-醋酸丁酯萃取光度法测定微量金Fn8汉语字典

Extraction Separation and Spectrophotometric Determination of Zirconium and HafniumP507萃取分离-二甲酚橙光度法测定锆铪Fn8汉语字典

Study on Solid Phase Extraction and Spectrophotometric Determination of Gold with Thio-Michler's Ketone固相萃取-硫代米蚩酮光度法测定金Fn8汉语字典

Water quality--Determination of vanadium--BPHA extraction spectrophotometric methodGB/T15503-1995水质钒的测定钽试剂(BPHA)萃取分光光度法Fn8汉语字典

Study on DW-Spectrophotometric Determination of Microamounts Copper with Naphathalene-Phase Extraction萘相萃取双波长分光光度法测定微量铜的研究Fn8汉语字典

Extraction-Spectrophotometric Determination of Trace Tantalum in Steels Using Ethyl Violet乙基紫萃取分光光度法测定钢铁中的微量钽Fn8汉语字典

Study on Spectrophotometric Determination of Microamount Manganese with Naphathalene Phase Extraction萘相萃取分光光度法测定微量锰的研究Fn8汉语字典

Studies on Determination of Trace Mercury in Water by Spectrophotometry after Cloud Point Extraction浊点萃取—分光光度法测定水体中汞含量的研究Fn8汉语字典

Cloud point extraction and ultraviolet-visible spectrophotometry used in the determination of cobalt浊点萃取-紫外可见分光光度法测定痕量钴Fn8汉语字典

Determination of Trace Pb in Water Samples by Spectrophotometry after Cloud Point Extraction浊点萃取-分光光度法测定水样中痕量铅Fn8汉语字典

Determination of Trace Chromium(Ⅵ) in Electroplating Wastewater by Extraction-Spectrophotometry用萃取-分光光度法测定电镀废水中的铬(Ⅵ)Fn8汉语字典

Determination of Trace Cr(Ⅵ) in Water by Spectrophotometry with Cloud Point Extraction浊点萃取-分光光度法测定水中痕量六价铬Fn8汉语字典

The Determination of LAS in Water by Online Extraction-Flow Injection Spectrophotometry在线萃取流动注射分光光度法测定水中LAS含量Fn8汉语字典