Results 101 to 110 of about 346,652 (151)

[Determination of <i>S-</i>enantiomer in linagliptin by supercritical fluid chromatography-ultraviolet detection]. [PDF]

Se Pu
Li WJ, Jin W, Liu Q, Wang J, LE J.
europepmc   +1 more source

铬盐清洁生产工艺中铝硅的脱除

, 2007
研究铬盐清洁生产工艺中铝硅的脱除。理论计算表明:CaO加入浸出液中不会有致癌物铬酸钙的生成。结果表明:在反应温度为70-90℃时,添加适量的CaO,浸出液中的铝硅可以脱除到要求值。无铁渣存在时脱铝硅产物为Ca2.93Al1.97Si0.64O2.56(OH)9.44,有铁渣存在时为Ca3AlFe(SiO4)(OH)8。铁渣的存在可以加速铝硅脱除反应的速度,提高铝硅的脱除率 ...
张懿, 郑诗礼, 王少娜
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[Determination of 38 antibiotic residues in honey by magnetic dispersive solid-phase extraction-liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Sun J, Zhang Y, Liu FM, Zhao W, Jin Y, Zhang L, Xue XF, Chen R, Zhou HT.   +8 more
europepmc   +1 more source

[Determination of ergot alkaloids toxins in forage grass by ultra performance liquid chromatography-tandem mass spectrometry coupled with solid-phase supported liquid-liquid extraction]. [PDF]

Se Pu
Ren CX, Wang XM, Sheng WL, Han YZ, Zhang CY, Zheng SZ.   +5 more
europepmc   +1 more source

低温分配固液萃取结合高效液相色谱质谱法测定食用菌中6苄基腺嘌呤

, 2018
建立了低温分配固液萃取(SLE-LTP)技术结合高效液相色谱-质谱(HPLC-MS)测定食用菌中6-苄基腺嘌呤(6-BA)的方法。食用菌样品经乙腈提取和低温分配,采用Hitachi LaChrom C18色谱柱(250 mm×4.6 mm, 5 μm)分离,以0.02 mol/L乙酸铵(含0.1%(v/v)冰乙酸)-甲醇(6∶4, v/v)溶液为流动相,等度洗脱,在电喷雾正离子模式下检测,外标法定量。结果表明,6-苄基腺嘌呤在0.05~2.0 mg/L范围内线性关系良好,相关系数为1.0000 ...
王大利, 侯琨, 李永路, 渡边正树, 霍虹, 韩晶   +5 more
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[Revolution teaching practice in sample pretreatment supported by large-scale instrument： a case study of magnetic covalent organic framework enriching organic ultraviolet filters in seawater]. [PDF]

Se Pu
Li S, Zhu YL, Ren Z, Gao DD, Gu HL, Lao JL.   +5 more
europepmc   +1 more source

[Determination of eight ultraviolet absorbers in surface water and wastewater by ultra performance liquid chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu
Sun HJ, Zhang BB, Huang MQ, Wang H, Hu GJ, Chen HM.   +5 more
europepmc   +1 more source

[Determination of six whitening ingredients in cosmetics by ultra performance liquid chromatography coupled with photodiode array detector and corona charged aerosol detector]. [PDF]

Se Pu
Li X, Wang Y, Fan F, Zhou W, Chen B, Shi H, Cai G, Liu Y, He Y.   +8 more
europepmc   +1 more source

[Expression of Rho-related BTB domain-containing protein 1 in tongue squamous cell carcinoma and its effect on cell proliferation, invasion, and migration]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Shao Y, Wang Y, Yu W, Xu Y, Xu J, Wang X, Chen Z.   +6 more
europepmc   +1 more source

甚短距离光传输（VSR-1）系统色散功率代价的分析

, 2007
导出了一种用系统10％-90％上升时间所表示的最坏情况下多模光纤色散功率代价的计算方法。将最坏情况下的眼图闭合用光接收器在t0时刻的输出信号波形表示，从而得到了色散功率代价的数学表达式。为了得到光接收器输出信号波形的解析解，假设多模光纤链路是一个低通滤波器，其归一化脉冲响应是高斯形式的。用这种方法对甚短距离光传输系统VSRd的色散功率代价做了计算分析，所得结果可作为最坏情况下VSR ...
贾久春, 陈雄斌, 周毅, 陈弘达
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