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81.
免疫胶体金技术的应用与展望 总被引:1,自引:0,他引:1
免疫胶体金技术是一种新型固相标记免疫检测技术,因其独特的性质在许多领域得到广泛应用和快速发展。简述了免疫胶体金技术在电镜、光镜快速检测诊断中的发展以及在生物医学、免疫组织化学和细胞生物学等领域的研究和应用。未来免疫胶体金技术在提高胶体金制备质量的同时将实现定量和多元化检测。 相似文献
82.
用红外光谱、紫外吸收光谱、一维(1 H、13 C)和二维(1 H-1 H COSY、HMQC、HMBC)核磁共振光谱及质谱对薁磺酸钠进行结构确证。对所有的1 H-NMR和13 C-NMR谱进行了归属;讨论了红外吸收光谱峰所对应的官能团的振动形式,并详细分析了薁磺酸钠质谱图中主要碎片离子的裂解途径,还对样品进行了差热和热重分析。以上研究结果确证了薁磺酸钠的分子结构,并确证其经验分子式为C15H17NaO3S·1/2H2O。 相似文献
83.
应用高效液相色谱法测定化妆品中5种性激素的含量。化妆品样品以甲醇提取,采用Kromasil 100-5C18色谱柱为分离柱,以乙腈-水(65+35)溶液为流动相,在检测波长242nm和290nm处进行测定。5种性激素的质量浓度均在0.100~10.0mg·L-1范围内与其峰面积呈线性关系,方法的检出限(3S/N)在0.552~1.01 mg·kg-1之间,测定下限(10S/N)在1.10~5.04mg·kg-1之间。加标回收率在96.2%~110%之间,测定值的相对标准偏差(n=9)在均小于10%。 相似文献
84.
85.
Juan Gu Shao‐Ming Chi Yong Zhao Ping Zheng Qiong Ruan Yan Zhao Hong‐You Zhu 《Helvetica chimica acta》2011,94(9):1608-1617
The inclusion‐complexation behavior of coenzyme Q10 (CoQ10) with the three polyamine‐modified β‐cyclodextrins (CDs) 1 – 3 was investigated in both solution and the solid state by means of NMR, XRD, and FT‐IR spectroscopy. The results showed that the apparent solubility of CoQ10 increased linearly upon addition of hosts 1 – 3 , giving AL‐type phase‐solubility curves. These hosts 1 – 3 were able to solubilize CoQ10 to high levels, up to 1.35, 1.52, and 1.44 mg/ml (calculated as CoQ10), respectively. The host 2 with a moderate‐length chain is the most suitable for inclusion complexation of CoQ10. Accroding to the ROESY experiments, the MeO groups of CoQ10 and the tether of 2 can be co‐included into the cavity of β‐CD through the induced‐fit interaction between host and guest. The binding ability of modified β‐CDs 1 – 3 upon complexation with CoQ10 are discussed from the viewpoints of the size/shape‐matching relationship and the induced‐fit concept between host CDs and guest CoQ10 molecule. 相似文献
86.
Pengfei Xiao Changli Bao Naizhong Song Cui Li Qiong Jia 《Russian Journal of Inorganic Chemistry》2011,56(7):1157-1161
In the present study, sec-nonylphenoxy acetic acid (CA100) and its mixtures with four neutral organophosphorus extractants, tri-butyl-phosphate (TBP),
2-ethylhexyl phosphonic acid di-2-ethyl ester (DEHEHP), Cyanex923, and Cyanex925 have been applied to the extraction of rare
earths. Results show that all the four mixing systems do not have evident synergistic effects on the extraction of rare earths.
The different extraction effects have been considered to the separation of rare earths. The four mixtures may be applied to
the separation of yttrium from some certain lanthanoids at proper mole fractions of CA100. 相似文献
87.
Qiong Ji YaoZaher M.A. Judeh 《Tetrahedron》2011,67(22):4086-4092
The preparation of new chiral 1,3-diamine ligand systems based on the 1,1′-methylene-bis(1,1′,2,2′,3,3′,4,4′-octahydroisoquinoline) framework is described. Synthesis of various mono-, di-, and bridged N-alkyl derivatives are presented. Resolution of one compound, its Cu(I)Br X-ray crystallographic structure and the preliminary results on its application in the enantioselective Henry and Aldol reactions are disclosed. 相似文献
88.
中空Fe203/G-NS纳米复合材料的制备和储锂性能 总被引:1,自引:0,他引:1
以三氯化铁和氧化石墨烯(Graphite oxide,GO)为原料,采用水热法一步合成了中空Fe2O3/石墨烯(Graphene nanoslheet,GNS)纳米复合材料.研究结果表明,Fe2O3/GNS纳米复合材料的形成是由于Fe3+催化氧化GO中的羧基等官能团释放出CO2,并以原位形成的CO2气泡为模板形成了中空... 相似文献
89.
Hyun Min ParkByul Nim Oh Jin Hoon KimWu Qiong In Hong HwangKwang-Deog Jung Cheal Kim Jinheung Kim 《Tetrahedron letters》2011,52(43):5581-5584
In this study, an assay to quantify the presence of aluminum ions with a receptor containing naphthol and quinoline moieties was developed using a turn-on fluorescence enhancement approach. Upon treatment with aluminum ions, the fluorescence of the receptor was enhanced at 510 nm due to the formation of a complex between the ligand and aluminum ions at room temperature. As the concentration of Al3+ was increased, the fluorescence gradually increased. Other metal ions, such as K+, Ag+, Ca2+, Mg2+, Zn2+, Mn2+, Co2+, Ni2+, Cu2+, Cd2+, Cr3+, Fe3+, In3+, had no significant effect on the fluorescence. 相似文献
90.
Jin‐Peng Geng Prof. Dr. Zhao‐Xi Wang Qiong‐Fang Wu Ming‐Xing Li Prof. Dr. Hong‐Ping Xiao 《无机化学与普通化学杂志》2011,637(2):301-305
A new manganese(II) complex [Mn3(bidc)2(C2O4)(H2O)10]n ( 1 ) (bidc = benzimidazole‐5,6‐dicarboxylate) was synthesized and characterized by X‐ray crystallography. X‐ray diffraction shows that complex 1 has a neutral, one‐dimensional (1D) brick wall chain structure. With the intramolecular and intermolecular hydrogen bonding interactions, the adjacent chains are joined into a 3D suparmolecular architecture. IR spectroscopy and variable temperature magnetic susceptibility measurements were made, which indicated weak antiferromagnetic coupling between the MnII ions in complex 1 . 相似文献