Results 91 to 100 of about 1,049,998 (126)

[Determination of 29 per- and polyfluoroalkyl substances and 22 organophosphate esters and diester metabolites in human serum by high-throughput solid-phase extraction- ultra performance liquid chromatography- high resolution mass spectrometry]. [PDF]

Se Pu
Zhao SQ, Ding H, Zhang XW, Hou MM, Zhou TT, Shi YL, Cai YQ.   +6 more
europepmc   +1 more source

一种甲醇水蒸气重整制氢的方法

, 2011
本发明涉及一种甲醇水蒸汽重整制氢的方法，即以甲醇和水为原料，反应温度为410-460℃，反应空速为3000-23000h-1(以气态甲醇计)，原料甲醇和水以摩尔比1∶(0.8-2.0)的条件下混合汽化后，在固定床反应器中与ZnO/ZnAl2O4催化剂接触，生成富含氢气的重整气，重整气再经钯膜分离器分离制取纯氢气体。所述ZnO/ZnAl2O4催化剂中，锌铝原子比介于＞0.5∶1至2.5∶1的范围。本发明具有反应空速高、反应转化率高、CO浓度低，催化剂制备简单、稳定性好、成本低等优点 ...
杨梅, 陈光文, 李淑莲, 焦凤军
core  

[Modified <i>Gandou</i> Decoction improves cognitive function of TX mice with Wilson's disease by inhibiting the PKR/eIF2α pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xu C, Han Y, Cheng N, Dong J.
europepmc   +1 more source

一种复合杀菌剂及制备方法

, 2003
本发明涉及污水处理技术，具体地说是一种复合杀菌剂及制备方法。按体积份数，其成分取黄连提取液100份，含有效碘0.3％～0.5％的碘伏溶液100～200份，按每100毫升黄连提取液加入含有效氯25％～30％的次氯酸钙0.8克～2.0克；制备：1)制备黄连提取液：称取黄连，加蒸馏水，水浴处理，过滤得滤液1；滤渣加蒸馏水，小火煮，过滤得滤液2；滤渣再加蒸馏水，小火煮，过滤得滤液3；合并滤液1、2、3，浓缩合并滤液制得；2)使用前，按上述份数比例混配。它杀菌效果更优、且无二次污染 ...
刘波, 孙艳, 王海岩, 赵静玫, 徐和利, 都绛瑛   +5 more
core  

[Kahweol improves motor function of mice with spinal cord injury by inhibiting microglial activation <i>via</i> regulating the IκBα/NF-κB pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xia J, Chen Y, Ren L, Li J, Song X, Tao L, Hu J.   +6 more
europepmc   +1 more source

一种制备对苯二甲酰氯的方法

, 2014
本发明涉及一种制备对苯二甲酰氯的方法。将氯化亚砜与对苯二甲酸以2:1～5:1质量比混合，加入对苯二甲酸质量0.5～2%的取代吡咯烷、取代哌啶、取代吡啶、（取代）喹啉、（取代）异喹啉、（取代）邻菲罗啉、取代咪唑、取代苯并咪唑等含氮有机碱中的一种或一种以上为催化剂，在70～120℃反应4～16小时，蒸馏回收过量氯化亚砜，蒸馏或减压精馏回收催化剂，并通过减压精馏得到产物对苯二甲酰氯，收率最高可达96%，纯度高于99%。本发明具有催化剂价廉易得且可循环再用、产物收率及纯度高 ...
高进, 魏灵朝, 苗虹, 付瑶, 蒋元力, 黄义争, 徐杰, 宋灿   +7 more
core  

[Expectant management versus acetaminophen for early treatment of hemodynamically significant patent ductus arteriosus in very preterm infants: a randomized controlled trial]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Xu SY, Wang BJ, Li Z, Yang KD, Wang LY, Xu N, Wang ZX, Li M, Gao XY.   +8 more
europepmc   +1 more source

[Determination of 65 synthetic cannabinoids in whole blood by QuEChERS-ultra performance liquid chromatography- mass spectrometry]. [PDF]

Se Pu
Xi Z, Ye Y, Li SP, Kang J, Liu WQ, Zhang J, Li DX.   +6 more
europepmc   +1 more source

[Analysis of volatile aroma components in tobacco by gas chromatography-mass spectrometry coupled with headspace solid phase microextraction]. [PDF]

Se Pu
Yao XL, Ma YY, Li Y, Shi GJ, Zhou QW, Zhang YH, Luo NJ, Zhang L, Li B, Deng N, Meng LJ.   +10 more
europepmc   +1 more source

[Post-aging comparative study of snowplow and conventional techniques for the resin restoration of defective primary teeth]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Han M, Lü J, Guan J, Wang M, Lü X, Jin X.   +5 more
europepmc   +1 more source