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目的建立同时、快速测定化妆品中葵子麝香、佳乐麝香、二甲苯麝香、麝香酮、吐纳麝香和酮麝香6种人造麝香的气相色谱-质谱联用分析方法。方法以面霜、沐浴露、面膜等不同基质的化妆品为试样,选用乙酸乙酯进行提取,固相萃取(solid phase extraction,SPE)小柱净化,采用气相色谱-质谱联用外标法进行分析。结果葵子麝香、佳乐麝香、二甲苯麝香、麝香酮、吐纳麝香和酮麝香6种人造麝香在0.02~0.50μg/mL浓度范围内线性良好,相关系数为0.9968~0.9992。空白样品添加水平分别为0.20、0.40、2.00 mg/kg时,回收率在83.0%~110.38%之间,相对标准偏差在2.8%~7.5%之间,以上6种人造麝香的方法检出下限在20.0~40.0μg/kg之间。结论本方法简单、快速、准确,可满足化妆品中6种人造麝香的同时检测及确证需求。 相似文献
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麝香-T具有甜而优雅的麝香香韵及类似于天然麝香的结构,广泛用于调配各种高级日化产品。抚顺石油化工研究院在成功开发了系列FY-13复合催化剂、研究了工程放大规律、解决了过程自控问题并优化了工艺条件后,实现了麝香-T的工业化生产。开发成功的合成技术在50t/a的工业化装置上连续运转的结果表明,装置运转平稳,数据重复性好,产品收率及质量稳定,总平均收率达到了87.1%,具有良好的推广应用前景。 相似文献
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Preparation of the traditional Chinese medicine compound recipe heart-protecting musk pH-dependent gradient-release pellets 总被引:2,自引:0,他引:2
Song H Guo T Zhang R Zheng C Ma Y Li X Bi K Tang X 《Drug development and industrial pharmacy》2002,28(10):1261-1273
In this study a sustained-release formulation of traditional Chinese medicine compound recipe (TCMCR) was developed by selecting heart-protecting musk pills (HPMP) as the model drug. Heart-protecting musk pellets were prepared with the refined medicinal materials contained in the recipe of HPMP. Two kinds of coated pellets were prepared by using pH-dependent methacrylic acid as film-forming material, which could dissolve under different pH values in accordance with the physiological range of human gastrointestinal tract (GIT). The pellets coated with Eudragit L30D-55, which dissolves at pH value over 5.5, were designed to disintegrate and release drug in the duodenum. The pellets coated with Eudragit L100-Eudragit S100 combinations in the ratio of 1:5, which dissolve at pH value 6.8 or above, were designed to disintegrate and release drug in the jejunum to ileum. The pellets coated with HPMC, which dissolves in water at any pH value, were designed to disintegrate and release drug in the stomach. Finally, the heart-protecting musk sustained-release capsules (HPMSRC) with a pH-dependent gradient-release pattern were prepared by encapsulating the above three kinds of coated pellets at a certain ratio in hard gelatin capsule. The results of dissolution of borneol (one of the active compounds of the TCMCR) in vitro demonstrated that the coating load and the pH value of the dissolution medium had little effect on the release rate of borneol from pellets coated with hydroxypropyl methyl cellulose (HPMC), but had a significant effect on the release rate of borneol from pellets coated with Eudragit L30D-55 or Eudragit L100-Eudragit S100 combinations in the ratio of 1:5. The pellets coated with Eudragit L30D-55 at 30% (w/w) coating load or above had little drug release in 0.1 mol/L HCl for 3 hr and started to release drug at pH value over 5.5. The pellets coated with Eudragit L100-Eudragit S100 combinations in the ratio of 1:5 at 36% (w/w) coating load or higher had little drug release in 0.1 mol/L HCl for 3 hr and in phosphate buffer of pH value 6.6 for 2 hr, and started to release drug at pH value 6.8 or above. The release profiles of lipophilic bornoel and hydrophilic total ginsenoside from HPMSRC, consisting of three kinds of pellets respectively coated at a certain ratio with HPMC, Eudragit L30D-55, and Eudragit L100-Eudragit S100 in the ratio of 1:5, showed a characteristic of pH-dependent gradient release under the simulated gastrointestinal pH conditions and no significant difference between them. The results indicated that various components with extremely different physicochemical properties in the pH-dependent gradient-release delivery system of TCMCR could release synchronously while sustained-releasing. This complies with the organic whole concept of compound compatibility of TCMCR. 相似文献
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In-Seok Lee 《Water research》2010,44(1):214-25
Synthetic musk compounds (SMCs) occur widely in water environments. The aims of this paper were to investigate the occurrence and fate of SMCs in sewage treatment plants (STPs) and surface waters. Total SMC concentrations ranged from 3.69 to 7.33 μg/L (influent) and from 0.96 to 2.69 μg/L (effluent) in 10 STPs. The SMC concentrations varied with the input source and treatment volume of each STP. Biological treatment processes had a greater SMCs removal effect than chemical treatment, filtration and disinfection processes. The SMC concentrations in surface waters ranged from 0.15 to 16.72 μg/L and exhibited similar SMCs occurrence patterns generally. The fate of SMCs in water environments depends on their physical-chemical properties and their concentrations can be predicted from other SMC concentrations due to their similar fates. 相似文献
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William N. Setzer 《International journal of molecular sciences》2009,10(8):3488-3501
A conformational analysis of nine macrocyclic thioether musks has been carried out using molecular mechanics (MMFF), density functional theory (DFT) using both B3LYP and M06 functionals, as well as Hartree-Fock and post-Hartree-Fock (MP2) ab initio methods. 6-Thia-, 10-thia- and 4-methyl-5-thia-14-tetradecananolide, 4-thia-, 7-thia-, 11-thia- and 12-thia-15-pentadecanolide and 6-thia- and 12-thia-16-hexadecanolide were modeled. Unfortunately, there was little agreement between the computational methods at the levels of theory used in this study. 相似文献
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The solid-liquid equilibria of musk ketone musk xylene, musk xylene 1,3-dimethyl-2,4-dinitro-5-tert-butyl benzene are measured by differential scanning calorimeter (DSC), these systems are proved to be simple eutectics. Moreover the melting points and the fusion enthalpies of musk ketone, musk xylene and 1,3-dimethyl-2,4-dinitro-5-tert-butyl benzene are also measured by the DSC. These solid-liquid equilibrium data and the heats of fusion are reported for the first time. Then UNIFAC model is used to correlate the solid-liquid equilibrium data.It is shown that the solid-liquid equilibria of musk systems can be predicted bv the UNIFAC model. 相似文献