{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"以丁二酸酐为连接臂,经两步反应制备了壳聚糖负载辛可宁有机催化剂(CTS-SA-CN),并研究了CTS-SA-CN在水体系中对酮与多种芳香醛的直接不对称aldol反应的催化性能。结果表明,在CTS-SA-CN催化下,酮与多种芳香醛发生直接不对称aldol反应,可得到99%的产率和96%的ee值。另外, CTS-SA-CN可通过简单过滤实现回收,重复使用5次活性并没有明显下降。","authors":[{"authorName":"赵文善","id":"4abd3455-137d-450e-a9b1-5c80633acdba","originalAuthorName":"赵文善"},{"authorName":"曲程科","id":"51094802-f741-4ada-8539-6bb4cf1ba471","originalAuthorName":"曲程科"},{"authorName":"杨莉莉","id":"9fe613d1-67c4-40c6-bf51-d96d13880ccc","originalAuthorName":"杨莉莉"},{"authorName":"崔元臣","id":"ac6dfc6e-5a02-465e-bdc3-c1f08093f60d","originalAuthorName":"崔元臣"}],"doi":"10.1016/S1872-2067(14)60248-5","fpage":"367","id":"abd7eb37-6289-4476-bb72-048b86655c2f","issue":"3","journal":{"abbrevTitle":"CHXB","coverImgSrc":"journal/img/cover/CHXB.jpg","id":"18","issnPpub":"0253-9837","publisherId":"CHXB","title":"催化学报 "},"keywords":[{"id":"a5c7afb4-4bb6-4dad-af6c-2352d876d093","keyword":"壳聚糖","originalKeyword":"壳聚糖"},{"id":"bc6bb758-cb8b-443a-92d5-89e7b35a77bd","keyword":"辛可宁","originalKeyword":"辛可宁"},{"id":"058c5d75-43b0-40f0-8af1-5c5ae01815bf","keyword":"负载型催化剂","originalKeyword":"负载型催化剂"},{"id":"9458b587-3f6b-409e-93b0-d0ace5d76628","keyword":"直接不对称Aldol反应","originalKeyword":"直接不对称Aldol反应"}],"language":"zh","publisherId":"cuihuaxb201503018","title":"壳聚糖负载辛可宁催化剂的制备及其在水中催化不对称Aldol反应","volume":"","year":"2015"},{"abstractinfo":"以价廉易得的天然金鸡纳生物碱奎宁和辛可宁为原料,在温和条件下容易地合成了6种手性双胺配体. 考察了它们与过渡金属Ir和Rh形成的配合物在苯乙酮不对称氢转移反应中的催化活性和不对称诱导作用. 结果表明, 9-氨基金鸡纳生物碱配体具有良好的不对称催化活性,而当配体中的氨基被取代后其对映选择性降低. 将9-氨基(9-脱氧)表辛可宁的Ir配合物用于其它芳香酮的不对称氢转移反应时,该配体也显示了很高的催化活性(80%~90%收率)和对映选择性(除对氯苯乙酮ee值为72%外,其余芳香酮ee值均为95%~97%).","authors":[{"authorName":"何炜","id":"8adca25e-cb19-4079-bc04-5d63170c200c","originalAuthorName":"何炜"},{"authorName":"张邦乐","id":"52b8210b-48a2-4687-8e14-23e7c3cf8732","originalAuthorName":"张邦乐"},{"authorName":"刘鹏","id":"8a186b9d-273f-43d1-b3b6-c7460a2e670e","originalAuthorName":"刘鹏"},{"authorName":"孙晓莉","id":"8623d0e6-bf5a-4165-a1fa-1c0a899b5b37","originalAuthorName":"孙晓莉"},{"authorName":"张生勇","id":"1763411c-ffed-4423-a944-893d02f4e413","originalAuthorName":"张生勇"}],"doi":"","fpage":"527","id":"738839db-6d29-4052-9358-201292b4ae48","issue":"6","journal":{"abbrevTitle":"CHXB","coverImgSrc":"journal/img/cover/CHXB.jpg","id":"18","issnPpub":"0253-9837","publisherId":"CHXB","title":"催化学报 "},"keywords":[{"id":"2387c761-7a12-409d-bc45-5cacb57ba143","keyword":"金鸡纳生物碱","originalKeyword":"金鸡纳生物碱"},{"id":"d5f8dc88-5924-4545-ad2e-0eea8e708562","keyword":"奎宁","originalKeyword":"奎宁"},{"id":"fb1a1a33-1556-44da-a0d1-957719416d06","keyword":"辛可宁","originalKeyword":"辛可宁"},{"id":"41670d41-c972-4d6e-88c0-8d7a23fe1651","keyword":"手性双胺配体","originalKeyword":"手性双胺配体"},{"id":"9c59328e-9f30-43a6-b05d-57d29766f1c9","keyword":"手性催化剂","originalKeyword":"手性催化剂"},{"id":"66125e9e-40c1-4a7f-ad31-0fc1b4d19069","keyword":"不对称氢转移反应","originalKeyword":"不对称氢转移反应"},{"id":"68165512-20ce-469b-98ba-d4d78429992d","keyword":"苯乙酮","originalKeyword":"苯乙酮"}],"language":"zh","publisherId":"cuihuaxb200606016","title":"金鸡纳生物碱衍生手性双胺配体的合成及其在不对称氢转移反应中的催化作用","volume":"27","year":"2006"},{"abstractinfo":"由辛可宁和2,4,6-三甲基苄氯,合成了一种新的手性季铵盐(1a),并进一步用苄基溴、碘甲烷和烯丙基氯对分子中的羟基进行醚化,得到相转移催化剂1b、1c和1d. 以次氯酸钠为氧化剂时,化合物1b、1c和1d可不对称地催化查尔酮的环氧化反应,ee值58%~63%,产率89%~92%.","authors":[{"authorName":"张永强","id":"1ad93e10-7955-49a0-9862-bc584b8ad43b","originalAuthorName":"张永强"},{"authorName":"沈宗旋","id":"67b129f4-41fe-40ed-9e52-4668e835ae89","originalAuthorName":"沈宗旋"},{"authorName":"张雅文","id":"42b2f433-a9bb-4f2a-a7ab-3ad9825b3ab0","originalAuthorName":"张雅文"}],"doi":"10.3969/j.issn.1000-0518.2006.11.011","fpage":"1233","id":"e8f00f35-ba9b-4c06-ad6d-a15adc8d2789","issue":"11","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"4c11d9d3-caaf-4b7b-b49e-075492767de6","keyword":"手性相转移催化剂","originalKeyword":"手性相转移催化剂"},{"id":"4cd32410-f8de-4e94-8b4c-587a07dcb003","keyword":"合成","originalKeyword":"合成"},{"id":"5ba6049e-97cd-49c2-83e6-337390d56821","keyword":"醚化","originalKeyword":"醚化"},{"id":"0c41bce9-f9d1-4191-8ccf-5716952b0c46","keyword":"不对称环氧化","originalKeyword":"不对称环氧化"},{"id":"0aff9aed-f2cb-4b52-9795-cf01ccab03cd","keyword":"查尔酮","originalKeyword":"查尔酮"}],"language":"zh","publisherId":"yyhx200611011","title":"基于辛可宁的几种手性季铵盐的合成及对查尔酮的催化不对称环氧化","volume":"23","year":"2006"},{"abstractinfo":"建立了被动吸烟儿童尿液中可丁宁的气相色谱-三重四极杆串联质谱( GC-MS / MS)稳定同位素稀释测定方法。尿液经过三氯甲烷提取、净化,采用气相色谱-三重四极杆串联质谱多反应监测( MRM)模式测定,以可丁宁-d3稳定同位素为内标,定量测定和确证被动吸烟儿童尿液中的可丁宁;在0.1~10μg / L 可丁宁质量浓度范围内方法的线性关系良好,相关系数 r﹥0.998;空白尿液中添加可丁宁0.1、1.0和10μg / L,回收率为79.2%~112.8%,相对标准偏差在2.1%~5.8%之间;方法定量限达到0.1μg / L。该方法准确、灵敏、快速,适用于家庭被动吸烟儿童尿液中可丁宁的测定。","authors":[{"authorName":"王芸","id":"b892c051-4ff2-41c1-a646-8eab0a11d3de","originalAuthorName":"王芸"},{"authorName":"黄志强","id":"71162310-5a8a-43e8-98a5-9629a8df311a","originalAuthorName":"黄志强"},{"authorName":"叶英","id":"b0a4ecfd-c26c-4382-92b4-a6aff76e7459","originalAuthorName":"叶英"},{"authorName":"张莹","id":"58a20893-62c3-4c2d-be13-dccebd313b5d","originalAuthorName":"张莹"},{"authorName":"肖水源","id":"7c1bf601-4d43-44fd-9d6b-d8e98e9d865c","originalAuthorName":"肖水源"}],"doi":"10.3724/SP.J.1123.2014.01023","fpage":"658","id":"7c6aed08-520e-4cbd-ad1b-398fec15995b","issue":"6","journal":{"abbrevTitle":"SP","coverImgSrc":"journal/img/cover/SP.jpg","id":"58","issnPpub":"1000-8713","publisherId":"SP","title":"色谱 "},"keywords":[{"id":"77495ce0-83bb-4328-a33d-ffcc0d57d236","keyword":"气相色谱-串联质谱","originalKeyword":"气相色谱-串联质谱"},{"id":"3ff4c38a-3696-4bf5-b454-e6531dff89f3","keyword":"同位素稀释法","originalKeyword":"同位素稀释法"},{"id":"2ce5f2a8-25aa-4388-bc44-1a69d6cc46e9","keyword":"可丁宁","originalKeyword":"可丁宁"},{"id":"fac55b44-52a8-4180-a33c-a9bf80c1c0d0","keyword":"尿液","originalKeyword":"尿液"},{"id":"4e2ee5b0-8754-4b6d-955b-0a432488c075","keyword":"儿童","originalKeyword":"儿童"},{"id":"f4744fa9-4ab3-4f44-bf82-afa1fc9ea055","keyword":"被动吸烟","originalKeyword":"被动吸烟"}],"language":"zh","publisherId":"sp201406017","title":"气相色谱-三重四极杆串联质谱稳定同位素稀释法测定被动吸烟儿童尿液中的可丁宁","volume":"","year":"2014"},{"abstractinfo":"找到了一个能够用矩阵法计算的新序参量,此参量既能给出有限数量格点时一维伊辛模型中存在相变,又能给出无限数量格点时相变消失的结果.利用此序参量求出了一个计算相变点的简洁近似公式.","authors":[{"authorName":"田树旬","id":"c54330c7-9418-4f19-acea-4ace4901156e","originalAuthorName":"田树旬"}],"doi":"","fpage":"153","id":"195b84dc-2cf1-4ff5-b5ae-051891ff69c7","issue":"2","journal":{"abbrevTitle":"DWWLXB","coverImgSrc":"journal/img/cover/DWWLXB.jpg","id":"19","issnPpub":"1000-3258","publisherId":"DWWLXB","title":"低温物理学报 "},"keywords":[{"id":"0b5100e5-1efb-4313-97d0-d8d72c94e4c6","keyword":"一维伊辛模型","originalKeyword":"一维伊辛模型"},{"id":"c92d5079-f68f-46e1-af35-edaf1223ca05","keyword":"相变","originalKeyword":"相变"},{"id":"58ac394a-4d55-4608-a4e5-f6519942b55b","keyword":"矩阵法","originalKeyword":"矩阵法"}],"language":"zh","publisherId":"dwwlxb201502013","title":"一维伊辛模型的相变-Ⅱ","volume":"37","year":"2015"},{"abstractinfo":"通过利用大气腐蚀监测仪(ACM)对海南万宁地区的大气腐蚀进行长期电化学监测的结果,与该地区同期的主要大气腐蚀环境因素对比分析,初步找出海南万宁大气腐蚀的主要环境因子及其腐蚀环境特点.海南万宁长期处于高温高湿条件下,大气腐蚀处于连续不断过程之中,但这一地区大气污染少,加速因素较小,因而大气腐蚀不严重.","authors":[{"authorName":"祁凤玉","id":"db84778e-1328-4b7f-9257-27540a5c99df","originalAuthorName":"祁凤玉"}],"doi":"10.3969/j.issn.1005-5053.2000.03.014","fpage":"73","id":"24022872-599d-41c1-95ac-084c50684201","issue":"3","journal":{"abbrevTitle":"HKCLXB","coverImgSrc":"journal/img/cover/HKCLXB.jpg","id":"41","issnPpub":"1005-5053","publisherId":"HKCLXB","title":"航空材料学报"},"keywords":[{"id":"a51f1d17-4642-4f4a-b71c-dd5a9a23e4fb","keyword":"大气腐蚀","originalKeyword":"大气腐蚀"},{"id":"b91fee0b-234f-463b-af00-84fb23fc222b","keyword":"环境因子","originalKeyword":"环境因子"},{"id":"a158b466-aaa7-406f-a463-eb902f788eab","keyword":"电化学监测","originalKeyword":"电化学监测"}],"language":"zh","publisherId":"hkclxb200003014","title":"海南万宁大气腐蚀环境特点的研究","volume":"20","year":"2000"},{"abstractinfo":"采用拉、压循环试验测试了Az31镁合金的包辛格效应(BE),并研究了BE的机制.测试结果表明:压缩预变形后反向拉伸出现明显的BE.而拉伸预变形后反向压缩出现反包辛格效应(RBE);且包辛格效应比反包辛格效应明显.循环拉、压加载过程中的显微组织和晶体取向演化研究结果表明,出现包辛格效应是由于预压缩时改变晶粒取向与反向拉伸时去孪生效应共同作用的结果:预拉伸变形虽然不改变晶粒取向,但使轴比c/a值降低,使反向压缩时发生孪生更加困难,从而导致反包辛格效应.","authors":[{"authorName":"盛光敏","id":"c9ab42e2-2133-4cf1-ab4a-f92cc2f52699","originalAuthorName":"盛光敏"},{"authorName":"张功庭","id":"4605e58a-d0ef-4a22-a466-7cbece4f00cf","originalAuthorName":"张功庭"},{"authorName":"阎春","id":"7536391b-61f0-4385-a48a-b623a665c2e2","originalAuthorName":"阎春"}],"doi":"","fpage":"615","id":"ab54f077-129d-4907-8e84-e186d56d0401","issue":"4","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"887c88d8-addc-42b0-b5f8-3e8cce9ff9e4","keyword":"AZ31镁合金","originalKeyword":"AZ31镁合金"},{"id":"caaeb69c-6323-40aa-aad7-462028c304ac","keyword":"包辛格效应","originalKeyword":"包辛格效应"},{"id":"47dcb88d-9b03-4a4f-b086-3a302ae69d87","keyword":"反包辛格效应","originalKeyword":"反包辛格效应"},{"id":"bfa9e8d6-f85c-4007-9b4c-a423e595353f","keyword":"晶粒取向","originalKeyword":"晶粒取向"}],"language":"zh","publisherId":"xyjsclygc201104011","title":"AZ31镁合金包辛格效应研究","volume":"40","year":"2011"},{"abstractinfo":"在3.0~5.2mol/L的磷酸介质中,室温下Pd能与邻磺酸偶氮若丹宁反应,生成桔红色络合物,可据此测定Pd的含量.方法摩尔吸光系数为5.1×104 L mol-1cm-1,在0~35μg Pd/10mL范围内符合比耳定律.较大量的共存pt不干扰pd的测定.在水浴加热至100℃时,pd与pt均能与邻磺酸偶氮若丹宁发生显色反应,借此建立了同时测定pt与pd的方法.将该法用于pt、Pd回收废液中Pd和pt的测定,结果令人满意.","authors":[{"authorName":"赵中一","id":"7618936b-3c7d-4f73-8cf3-e7ef34ae354d","originalAuthorName":"赵中一"},{"authorName":"董秋花","id":"0e895b4c-5177-4006-8e71-144dec7a5095","originalAuthorName":"董秋花"},{"authorName":"席黎灵","id":"695a1685-b09d-49e6-9fe6-4be9f45e4bd8","originalAuthorName":"席黎灵"}],"doi":"10.3969/j.issn.1004-0676.2004.02.001","fpage":"1","id":"c7e832be-cfdc-4441-b389-896af25778d4","issue":"2","journal":{"abbrevTitle":"GJS","coverImgSrc":"journal/img/cover/GJS.jpg","id":"38","issnPpub":"1004-0676","publisherId":"GJS","title":"贵金属"},"keywords":[{"id":"920473df-f043-431c-9b13-e5b22a2c41b2","keyword":"分析化学","originalKeyword":"分析化学"},{"id":"3e577b82-7260-4ab0-ba31-847a5692b6f7","keyword":"邻磺酸偶氮若丹宁","originalKeyword":"邻磺酸偶氮若丹宁"},{"id":"ebe09044-e3d5-420a-beb7-d66d13fe141a","keyword":"Pt","originalKeyword":"Pt"},{"id":"12af972d-8a51-4bf3-8520-0e8dea7bceeb","keyword":"pd","originalKeyword":"pd"},{"id":"d310a8a0-af43-4f53-a899-06cf18ef6b19","keyword":"分光光度法","originalKeyword":"分光光度法"}],"language":"zh","publisherId":"gjs200402001","title":"邻磺酸基苯偶氮若丹宁与钯铂显色反应的研究与应用","volume":"25","year":"2004"},{"abstractinfo":"在哈密尔顿体系下,提出气体声波传播的一种新的谐振子模型,并引入群论确定气体声波传播过程中的分子振动模式、能级简并.新模型将气动声学声传播问题与分子振动关联起来.由于发展高效的薛定谔方程的数值计算方法,有利于联系分子的性质来解释声的传播.本文从此出发,用二阶有限差分格式和生成函数法构造的二阶辛格式分别计算一维定态谐振子势场和含时谐振子势场的薛定谔方程,分析了数值解的误差以及传播能量误差.结果表明辛算法具有明显的优势.","authors":[{"authorName":"涂运冲","id":"89ce3525-4bf5-4a81-9f5f-315f6693ed58","originalAuthorName":"涂运冲"},{"authorName":"谢军龙","id":"107df783-3691-4bac-b0d2-d3a5f79ab19b","originalAuthorName":"谢军龙"},{"authorName":"王嘉冰","id":"e8f75105-7121-4df8-8d8d-b3133fbb5071","originalAuthorName":"王嘉冰"},{"authorName":"张师帅","id":"e79e8205-deaa-457b-8697-73454f40c0a8","originalAuthorName":"张师帅"},{"authorName":"吴克启","id":"e123551e-9259-46f5-a518-15d6776ca313","originalAuthorName":"吴克启"}],"doi":"","fpage":"266","id":"2ee30482-c0fe-4aae-9670-9112bfc9cd98","issue":"2","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报 "},"keywords":[{"id":"f7db380a-d4fb-4d4c-9dbd-7424595acd92","keyword":"哈密顿原理","originalKeyword":"哈密顿原理"},{"id":"fc4561d3-f506-49a8-939f-317715188622","keyword":"薛定谔方程","originalKeyword":"薛定谔方程"},{"id":"8f68545e-2626-4e47-8878-41fd8c7da370","keyword":"辛几何算法","originalKeyword":"辛几何算法"}],"language":"zh","publisherId":"gcrwlxb201402013","title":"辛和非辛算法求解薛定谔方程误差分析","volume":"35","year":"2014"},{"abstractinfo":"利用二-(2-乙基已基)磷酸(P204)/正辛醇反胶束从枳实粗提物中萃取L-辛弗林.研究了萃取机理和水相pH值、含水量Wo、阳离子浓度、萃取时间以及P204浓度对L-辛弗林萃取率的影响.通过原子力显微镜观察了P204/正辛醇反胶束;萃取L-辛弗林的最佳条件为:萃取原料液水相pH =6.5,含水量W0=15、P204浓度为0.08 mol/L,在此条件下萃取15 min,对L-辛弗林的单次萃取率为68.0%.基于萃取率建立的数学模型可反映pH值、P204浓度与萃取率的关系,在一定pH值及P204浓度区间可预测萃取率的变化趋势.","authors":[{"authorName":"李晓辉","id":"1c1b2873-b045-453a-9eda-552136241e1e","originalAuthorName":"李晓辉"},{"authorName":"陈红梅","id":"f047f381-c45c-42ef-9714-963c70bd74b6","originalAuthorName":"陈红梅"},{"authorName":"周小华","id":"bdb62ec4-c8d3-4587-b895-dca7a71e1039","originalAuthorName":"周小华"},{"authorName":"苏昱","id":"692929d3-10da-4a6d-9614-ca8e73d88c26","originalAuthorName":"苏昱"},{"authorName":"王永红","id":"3d594f1b-6316-4537-b46d-0b32d216ee41","originalAuthorName":"王永红"}],"doi":"10.3724/SP.J.1095.2011.00685","fpage":"1311","id":"c77c44b7-2a26-41a8-83c9-af9a49672397","issue":"11","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"94a8615d-ddf8-4d99-9fa7-9fa35a2aab8f","keyword":"L-辛弗林","originalKeyword":"L-辛弗林"},{"id":"cfa4e892-f1db-41d6-b249-8b218dae498c","keyword":"二-(乙基己基)磷酸","originalKeyword":"二-(乙基己基)磷酸"},{"id":"7113d95c-dd03-4d39-8c6e-3a5f6f29fb79","keyword":"反胶束","originalKeyword":"反胶束"},{"id":"5eacf115-f3e1-4036-8fed-950f52d86a20","keyword":"萃取","originalKeyword":"萃取"}],"language":"zh","publisherId":"yyhx201111015","title":"二-(2-乙基己基)磷酸/正辛醇反胶束萃取L-辛弗林","volume":"28","year":"2011"}],"totalpage":1319,"totalrecord":13184}