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complex
    Polarographic Complex Adsorptive Wave of Lead-8 -Hydroxyquinoline Complex
    Ⅱ、铅—8—羟基喹啉配合物极谱吸附波及其应用
    At the condintion of pH=4.0~6.5, the selenium was fixed on finely divided silica gel as the complex with ammonium pyrrolidinedithiocarbamate (APDC) and the silica gel was collected on a membrane filter by filtration under suction, then wash down by 0.1mol/L hydrochloric acid from membrane filter paper and the suspension was directly subjected to the determination by Hydride Generation Atomic Absorption Spectrometry.
    用吡咯烷二硫代氨基甲酸铵(APDC)作配位剂,在pH4.0~6.5的条件下,用固体硅胶捕集、膜滤纸抽滤分离Se-APDC配合物,然后用0.1moL/L盐酸从膜滤纸上洗下硅胶,得到能够直接用氢化物原子吸收光谱法测定的硒悬浊液。 该法操作简便,富集速度快。
    Discussion on the structure of organic acid masked aluminum complex
    有机酸蒙囿铝(Ⅲ)配合物的结构探讨
    Research on Synthetic Conditions for Complex Tanning Agent of Polyacrylic and Zinc
    聚丙烯酸与锌配合物鞣剂合成条件的研究
    Adjustment of pH of spent tanning liquors and variety of chromium complex compositions
    废铬液循环中pH值的调整及其铬配合物组分变化的特征
    The synthesis and application of acrylicresin-Al complex tanning agent
    聚α-甲基丙烯酸与铝配合物鞣剂的合成及应用的研究
    Epoxidation of soybean oil with hydrogen peroxideby tungsten peroxide complex catalysts
    过氧钨配合物催化过氧化氢制备环氧大豆油的研究
    Performance and Application Prospect of Titanium Complex Compounds in Leather Industry
    鞣革用钛配合物的性能及其应用前景
    Thermochemical study on the complex of Ca(Ⅱ) with ascorbic acid
    抗坏血酸钙配合物的热化学研究
    The chitosan inferior iron ion complex had the especially good adsorption effect, which was reached to about 2.0mg per cigarette (or CO reduced 12.6 percent), simultaneously the selectivity was nice with little effect on the chemical quality index like nicotine, water, etc.
    其中以壳聚糖基亚铁配合物的效果为最佳,在本实验的操作条件下降CO效果达2.0mg/支左右(CO降低百分率为12.6%),同时选择性也比较好,对烟碱、水分等其他质量指标的影响不大;
    But which still needs to be further studied is the real mechanism of chitosan metal complex adsorbing CO and the technics of chitosan metal complex applied in cigarette filter tip.
    但对于壳聚糖基金属配合物材料吸附CO的机理以及壳聚糖基金属配合物材料在卷烟滤棒生产上的添加应用工艺等方面尚需进一步深入系统的研究。
    The maximum absorption wavelength of the violet red complex is 555nm.
    紫红色配合物的最大吸收波长为555nm。
    The rule that colour—complex competing with uncolour—complex for a same metal ion was used. Potodensities were determined by 721 spectro hotometer and the stable constant of complex of La(Ⅲ)—Tannin were obtained, as following: β_1=2. 25×10~7, β_2=8.34×10~(14).
    本文采用有色络合物—无色络合物竞争同一个金属离子的方法,用721分光光度计测定了它们光密度的变化,从而解出稀土La(Ⅲ)与丹宁配合物的稳定常数,即β_1=2.25×10~7,β_2=8.34×10~(14)。
    A new method for extractive spectrophotometry with Ph(Ⅱ) - KI - Rhodamine B - Triton X - 100 multicomponent complex of determination of microamount of lead in food has been studied.
    研究了Pb(Ⅱ)-KI-罗丹明B-TritonX-100多元配合物萃取光度法测定微量铅的新方法,该配合物λmax=565nm;
    CI (pHg.5 ) plumbum reacts with DBH-PF and forms a 1 :2 complex The maximum absorption is at 570 nm and the molar absorptivity is 1 .01 x 1 05L/mol/cm. Beer's law is obeyed in the range of0-9 g/L for pb2+. The method has been applied to the determination of plumbum in the toothpaste.
    在 PH9.5 NH3-NH4Cl缓冲体系中, Pb2+与 DBH-PF形成 1:2紫红色配合物,=1.01105L/mol/Cm, pb2+浓度在0-9 g/25ml范围内服从比尔定律/方法用于牙膏、人发以及粮食中铅的测定,结果令人满意。
    The basic condition of these complex copolymers which was used as a tanning agent is pH=5~6 and the concentration is about 30%.
    初步认为顺酐共聚物与铬离子配合物作为鞣剂使用的基本条件为 pH =5~ 6、浓度为 30 %。
    Every powder sample of polyurethane ligand and its chromium complex were characterized by FTIR , 13 C-NMR and DSC spectra. These spectra proved that the hydroxyl bridged coordination bond between COO - of polyurethane ligand and Cr 3+ ion existed.
    每种聚氨酯配体与其含铬配合物粉末样品都经过 FTIR,13 C- NMR和 DSC等手段表征 ,表征结果证明 :聚氨酯配体链上的 - COO-与水中 Cr3+之间存在羟基桥式配位。
    In a sodium acetate buffer medium (pH 4), Zn(Ⅱ) reacts with SCN - and rhodamine B (RhB) to form a complex of Zn SCN RhB, which is extracted into ether and its fluorescence intensity is measured at λ ex 532nm and λ em 580nm.
    在乙酸 乙酸铵缓冲溶液 (pH 4 )中 ,Zn(Ⅱ )与SCN- 、若丹明B(RhB)反应生成Zn SCN RhB配合物 ,经乙醚萃取后 ,在激发波长 5 32nm和发射波长 5 80nm进行荧光强度测定。
    In the HAc\|NaAc buffer medium with a pH value of 4.0, a stable complex was formed by reaction of Cu\+\{2+\} with 1\|(2\|pyridine azo)\|2\|naphthol, and the maximum absorption of the complex was at wavelength of 552nm.
    在pH =4 .0的HAc NaAc缓冲介质中 ,Cu2 +与 1- (2 -吡啶偶氮 ) - 2 -萘酚形成稳定的配合物 ,该配合物在λmax=5 5 2nm处有最大吸收。
    The molar absorptivity of the colored complex was found to be 3.26×10~4L·mol~(-1)·cm~(-1), and the sandell sensitivity was 0.004 2μg·cm~(-2).
    钡(Ⅱ) 二溴对甲偶氮羧配合物的最大吸收峰位于609nm,摩尔吸光系数和Sandell灵敏度分别为3.26×104L·mol-1·cm-1和0.0042μg·cm-2;
 

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