1) Extractive Spectrophotometric
萃取光度
1.
Study on Extractive Spectrophotometric Properties of Copper(I)-2,2'-biquionlyl-Fluorescein Ternary Ion-pair Complexes;
铜(Ⅰ)-2,2′联喹林-荧光素三元缔合配合物萃取光度性质研究
2) extractive spectrophotometry
萃取光度法
1.
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
2.
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
3.
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。
3) extraction-photometric method
萃取光度法
1.
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 。
2.
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。
3.
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。
4) Extraction spectrophotometry
萃取光度法
1.
Indirect Determination of Trace Amount Peracetic Acid in Food by Extraction Spectrophotometry with I_2-CCl_4;
碘-四氯化碳萃取光度法间接测定食品中的痕量过氧乙酸
2.
Indirect Determination of Trace Amount of Hydrogen Peroxide in Food by the I_2-CCl_4 Extraction Spectrophotometry;
碘-四氯化碳萃取光度法间接测定食品中的痕量过氧化氢
3.
To determine platinum in ore by I_2-CCl_4 extraction spectrophotometry after enrichment of platinum by mercaptoresin;
巯基树脂富集I_2-CCl_4萃取光度法测定矿石中的铂
5) Extraction luminosity method
萃取光度法
1.
Extraction luminosity method to determining of micro-lead in industrial waste water;
应用萃取光度法测定食品工业废水中微量铅
6) extraction photometric method
萃取光度法
1.
A new system of determination of lead(Ⅱ) by lead(Ⅱ) 7,16 dithiabenzo 18 crown 6 tetrabromofluorescein extraction photometric method was studied.
研究了铅 (Ⅱ ) 7,16 二硫苯并 18 冠 6 四溴荧光素萃取光度法分析铅的新体系。
2.
new sensitive extraction photometric method to determine palladium(II)by Pd2+ I-1 TBAB(Tetrabutylammonium bromide) three primary coordination compound was presented .
介绍了Ｐｄ２＋－Ｉ－－ＴＢＡＢ（四丁基溴化铵）三元缔合物萃取光度法测定钯的方法。
3.
After removing by liberating liquid of thiourea hydrochloric acid,the gold in ore are determined by extraction photometric method of I 2 CCl 4,achieving satisfactory result.
利用ＮＫ８３１０螯合树脂富集金，用硫脲盐酸解脱液解脱后，采用Ｉ２ＣＣｌ４萃取光度法测定矿石中的金，取得了较为满意的结果。
补充资料：pH指示剂吸光度比值测定法
分子式：
CAS号：
性质：采用容量法与分光光度法相结合的一种差示定量法。其原理为选择一种适当的酸碱指示剂，其酸式色和碱式色的吸收光谱和吸收度有显著的差别，且该指示剂的pKa值在某一酸碱反应的化学计量点的pH值附近，当酸碱滴定时，在酸式色和碱式色的最大吸收波长λ1和λ2处分别测得其吸收度Aλ1及Aλ2，计算吸收度比值r′(r= )，便可通过滴定中r的变化而准确测 定样品含量。该法除用于弱碱性药物的测定外，还可用于磺胺类、氨基酸等的测定。JP(9)已收载用于水杨酸钠、枸橼酸钠、氨基比林、无味奎宁、烟酰胺等药物的测定，《中国药典》(1985)也已收载用于枸橼酸钠的测定。
CAS号：
性质：采用容量法与分光光度法相结合的一种差示定量法。其原理为选择一种适当的酸碱指示剂，其酸式色和碱式色的吸收光谱和吸收度有显著的差别，且该指示剂的pKa值在某一酸碱反应的化学计量点的pH值附近，当酸碱滴定时，在酸式色和碱式色的最大吸收波长λ1和λ2处分别测得其吸收度Aλ1及Aλ2，计算吸收度比值r′(r= )，便可通过滴定中r的变化而准确测 定样品含量。该法除用于弱碱性药物的测定外，还可用于磺胺类、氨基酸等的测定。JP(9)已收载用于水杨酸钠、枸橼酸钠、氨基比林、无味奎宁、烟酰胺等药物的测定，《中国药典》(1985)也已收载用于枸橼酸钠的测定。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条