乙二醛双缩(2-羟基苯胺)(GBHA)在稀土离子分析中的应用

利用乙二醛双缩（2－羟基苯胺）（GBHA）对Ln^3 系离子进行分组分析，同时以GBHA为显色剂，用分光光度法分别测定了Ho^3 ,Yb^3 ,Er^3 ,Dy^3 和Tb^3五种离子，其检出限为10^-6mol/L，工作曲线线性范围为10^-5－－10^-3mol/L。     

石墨炉原子吸收光谱无标样分析法的研究：Ⅰ.消除基体干扰

实现石墨炉原子吸收光谱绝对分析必须消除基体干扰，本研究采用有机基体改进剂，管壁原子化、热解涂层石墨管，峰面积积分吸收信号，Ｄ２灯或Ｚｅｅｍａｎ效应扣除背景，有效地控制和消除了海水基体对Ａｓ，Ｃｄ，Ｃｏ，Ｃｒ，Ｃｕ，Ｍｎ，Ｎｉ，Ｐｂ和Ｖ等元素的干扰，实现了无干扰测定。     

红外光谱中溶剂效应机理研究(IV) 溶剂受电子位阻效应常数的确定

In the previous paper(Ⅲ), the following equation of solvent effect in organic chemistry was suggested:
Ei=a﹒Ai(1-Va﹒VAi)+d﹒Di(1-Vd﹒VDi)+E0
Where Ei is a physical or chemical property of the substrate in the solvent i and E0 is that in n-hexane. Ai and Di are constants of electron acception and donation effect of the solvent i respectively. VAi and VDi are constants of electron acception and donation space effect of the solvent i respectively, a and d are the sensitivities of E of the substrate vs the change of Ai and Di. Va and Vd are the constants of electron acception and donation space effect of the substrate respectively. In IR spectra E could be substituted by the wavenumber(ν). Ai and VAi have been established for 18 organic solvents (n-C6H14, n-C7H16, cyclohexane, CCl4, Ph-Me, ClCH:CCl2, Et2O, CHCl3, C6H6, CH2Cl2, ClCH2CH2Cl, Ph-NO2, THF, 1,4-dioxane, Et-NO2. MeCO2Et, Me-NO2, Me-CN).
In this paper Di and VDi have been established for these solvents. The equation also has been tested by the νC-X(X=Cl, Br) of five alkylhalides (t-BuCl, n-C5H11Cl, t-BuBr, Et-Br, EtC(H)BrMe) and νC=O of three carboxyl compounds (t-BuCOMe, Me2CO, MHB) and seven organotin compounds [(Ph2MeSiCH2)3SnO2C-C6H4-X-p(X=H-, CH3-, CH3O-, NO2-, F-. Cl-, I-)].
The relationship (ν=ρ﹒σ+ν0) between νC=O of organotin compounds and Hammett constants(σ) of the substituted groups in different solvents was studied and a relationship betweenρ and Ai, VAi, Di, VDi of the solvents was found.     

人牙釉质含矿量的掩模图象扫描自动定量分析的研究

运用数学形态学和计算机掩模扫描方法。建立了掩模图象自动分析ＴＯＯＴＨ。ＳＣＨ软件和方法，并应用于氟化物对人牙釉质矿物影响的自动定量分析。     

离子色谱柱切换技术同时测定食品中的多种成分

采用离子色谱柱切换技术同时测定了保留性质差别较大的有机酸以及不同价态的无机阴离子。由于柱切换基本不影响色谱基线,该法有较高的灵敏度。同时测定了食品中的乙酸,山梨酸、苯甲酸、糖精、氯离子和磷酸根。     

以万古霉素为流动相添加剂的高效液相色谱法手性分析系统的建立

以丹酰化苯甘氨酸、丹酰化苯丙氨酸、丹酰化丝氨酸、丹酯化丙氨酸为模型化合物，通过对色谱柱类型、缓冲液类型、pH和盐浓度、万古霉素用量、甲醇用量、柱温等色谱参数进行考察，建立了以万古霉素为手性流动相添加剂在普通色谱柱上进行手性分析的色谱系统，并在该系统中成功地拆分了酮洛芬对映体。     

1-(2-羟基-5-硝基苯基)-重氮氨基偶氮苯与镍的显色反应及其分析应用

合成了新显色剂 1 - ( 2 -羟基 - 5 -硝基苯基 ) -重氮氨基偶氮苯 ( HNPDAAB) ,研究了该试剂与镍的显色反应条件。在 Triton X- 1 0 0存在下 ,镍与试剂生成 1∶ 1型深红色配合物 ,其表观摩尔吸光系数达 1 .5 8× 1 0 5L· mol- 1· cm- 1。 Ni2 + 的浓度在 0～9μg/2 5 m L范围内符合比耳定律。方法已应用于合金中微量镍的测定 ,结果满意     

毛细管气相色谱法分离分析二甲砜和二甲亚砜

采用毛细管气相色谱法对间接电氧化法合成的二甲砜及反应物二甲亚砜进行了分离分析。研究了分离二甲砜、二甲亚砜的最佳条件，内标法定量。两种化合物的线性范围在2－30μg，且有较好的精密度。     

Synthesis and Crystal Structure of a Tetranuclear Silver Complex with Bis（diphenylphosphino） amine-dioxide as a Tridentate Ligand

1 INTRODUCTION The coordination chemistry of the nitrogen-contai- ning diphosphine ligand bis(diphenylphosphino)ami- ne (Ph2PNHPPh2) has recently received much atten- tion because the P atoms can bridge metal centers in μ-bonding mode to form bi- or polynuclear complex- es[1~10]. It has been shown that the acidity of N–H proton would promote functionalization on the ligand backbone[4, 5, 11]. Although a few complexes contain- ing deprotonated tridentate Ph2PNPPh2 have been synthesi…