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结果所得粉体平均粒径为30~40 nm,分布窄,团聚轻,外貌近球形,比表面积为26.20 m2/g,在室温下呈立方钙钛矿结构;粉体经造粒、成型并在改进的烧结工艺下获得综合电性能有较大幅度提高的PTCR陶瓷材料.","authors":[{"authorName":"李东升","id":"302a0481-1add-4ce0-89f4-4e8553f64b65","originalAuthorName":"李东升"},{"authorName":"吴淑荣","id":"32c1767c-038e-4c44-8ace-0cd01c10d82a","originalAuthorName":"吴淑荣"},{"authorName":"熊为淼","id":"fbdc9fd3-fef8-427b-a6f6-62c814dda6ed","originalAuthorName":"熊为淼"},{"authorName":"王文亮","id":"088db4a2-8274-49a0-b858-a871cf9f33c6","originalAuthorName":"王文亮"}],"doi":"10.3969/j.issn.1000-0518.2002.10.004","fpage":"932","id":"5ed0f98e-8212-4715-9ef3-a8fcf51c9df1","issue":"10","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"27e4bbab-c7b5-4200-9a8b-3eeb4f34be97","keyword":"正电阻-温度系数","originalKeyword":"正电阻-温度系数"},{"id":"3aae5701-aa92-4c35-8c52-6a1ab72259bc","keyword":"陶瓷材料","originalKeyword":"陶瓷材料"},{"id":"7c831f40-ccca-4359-9d56-5de3f7e29cbe","keyword":"溶胶-凝胶法","originalKeyword":"溶胶-凝胶法"},{"id":"e170fb2f-a434-49f7-b849-f2566da66e22","keyword":"纳米粉体","originalKeyword":"纳米粉体"}],"language":"zh","publisherId":"yyhx200210004","title":"BaTiO3基PTCR陶瓷材料的Sol-Gel制备方法的改进","volume":"19","year":"2002"},{"abstractinfo":"以熊果酸为原料,经C-3羟基氧化、C-28羧基苄酯化保护、C-2乙酰化及水解、还原、脱保护得到2β-羟基熊果酸,6步反应的总收率为60.1%.中间体及目标化合物结构经IR、1H NMR、13C NMR和MS测试技术确证.以噻唑蓝(MTT)比色法检测2β-羟基熊果酸对人白血病细胞K562及人肺癌细胞A549肿瘤细胞的体外抑制活性,结果表明,对2种肿瘤细胞的生长均表现出一定的抑制作用.","authors":[{"authorName":"黄丽荣","id":"dab6c25a-0ad0-43fc-a3c0-9081a9edb84c","originalAuthorName":"黄丽荣"},{"authorName":"陈磊","id":"02be7a59-238d-421b-8194-8fa5b3e2a5df","originalAuthorName":"陈磊"},{"authorName":"杨小生","id":"eb03355d-4e7e-43d4-8c8f-881c664ff69b","originalAuthorName":"杨小生"},{"authorName":"马琳","id":"e5630229-c9c8-4eac-b49f-81a24a5e1d7f","originalAuthorName":"马琳"},{"authorName":"张建新","id":"6be150c8-948f-479e-b682-fb4cf4bb48a0","originalAuthorName":"张建新"},{"authorName":"王道平","id":"a4171871-c142-430b-b2d8-188fb2bb57e0","originalAuthorName":"王道平"}],"doi":"10.3724/SP.J.1095.2013.20561","fpage":"1133","id":"1be51063-f0b1-4774-88c5-d2c00d6f7bc6","issue":"10","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"9a63df3a-4b4d-4b50-8c90-6b37e56665af","keyword":"熊果酸","originalKeyword":"熊果酸"},{"id":"0bacad31-2a08-4051-82db-19325cfa96f8","keyword":"2β-羟基熊果酸","originalKeyword":"2β-羟基熊果酸"},{"id":"b9379751-2685-47f1-b3ca-5fb1bca4eeba","keyword":"合成","originalKeyword":"合成"},{"id":"8fe50738-8da6-43ad-82ce-2a43b289c44e","keyword":"体外肿瘤细胞抑制活性","originalKeyword":"体外肿瘤细胞抑制活性"}],"language":"zh","publisherId":"yyhx201310006","title":"2β-羟基熊果酸的合成及其抗肿瘤活性","volume":"30","year":"2013"},{"abstractinfo":"建立了美白类化妆品中熊果苷的两种光学异构体α-熊果苷和β-熊果苷及烟酰胺的高效液相色谱检测方法.样品用氯化钠水溶液-氯仿(2∶1, v/v)进行萃取.固定相为依利特ODS-BP柱(200 mm×4.6 mm, 5 μm),流动相为甲醇-水(10∶90, v/v),柱温为25 ℃,检测波长为220 nm,流速为0.5 mL/min,进样量为20 μL.在上述条件下α-熊果苷、β-熊果苷和烟酰胺的质量浓度依次在0.07~50, 0.06~50, 0.05~50 mg/L 时与色谱峰面积之间的线性关系良好,相对标准偏差(n=7)分别为1.65% 、1.73%和1.33% .将该方法用于化妆品的检测,回收率为91.7% ~109.6% .该法简便、快速、准确,可用于化妆品美白成分的测定.","authors":[{"authorName":"程鹏","id":"b9c9a5bc-7e1b-4ed5-b5d1-cacb911c3929","originalAuthorName":"程鹏"},{"authorName":"陈梅兰","id":"74b04805-77aa-4e4b-8fa2-c64483fea866","originalAuthorName":"陈梅兰"},{"authorName":"朱岩","id":"9082e3e6-3efe-4d93-be62-4ca49995bc82","originalAuthorName":"朱岩"}],"doi":"10.3724/SP.J.1123.2010.00089","fpage":"89","id":"5eb0ba43-6634-4f71-bd68-ca152c4d6164","issue":"1","journal":{"abbrevTitle":"SP","coverImgSrc":"journal/img/cover/SP.jpg","id":"58","issnPpub":"1000-8713","publisherId":"SP","title":"色谱 "},"keywords":[{"id":"f6bfbb92-46ba-4ba2-8ba2-35c4401652ff","keyword":"高效液相色谱","originalKeyword":"高效液相色谱"},{"id":"c136ea75-5061-41f2-b1a2-04cdb300bcef","keyword":"α-熊果苷","originalKeyword":"α-熊果苷"},{"id":"bb39b326-5cea-4dd4-b1ba-b57a5e3392ec","keyword":"β-熊果苷","originalKeyword":"β-熊果苷"},{"id":"c555eeac-d8e7-43e8-beb9-cd21fef9fe69","keyword":"烟酰胺","originalKeyword":"烟酰胺"},{"id":"6f927bd8-f637-44d4-9a02-d32145225d06","keyword":"化妆品","originalKeyword":"化妆品"}],"language":"zh","publisherId":"sp201001015","title":"高效液相色谱法测定化妆品中α-、β-熊果苷及烟酰胺","volume":"28","year":"2010"},{"abstractinfo":"利用黄单胞菌(Xanthomonas) BT-112进行发酵,生物催化合成α-熊果苷. 考察了反应温度、摇床转速和菌体对对苯二酚的最大耐受度、反应物浓度比、反应时间及糖的种类等因素对反应的影响. 结果表明,用本方法合成的产物为单一的α-熊果苷. 在温度35 ℃, 摇床转速180 r/min, 对苯二酚浓度48 mmol/L, 蔗糖与对苯二酚的摩尔比2∶1, 反应48 h的条件下,高达94.3%的对苯二酚转化为α-熊果苷.","authors":[{"authorName":"刘春巧","id":"6ccda5b4-9cbe-4eb0-817c-a45794efb2ab","originalAuthorName":"刘春巧"},{"authorName":"张淑荣","id":"f8f61eb0-4023-44d6-be6b-617868e63471","originalAuthorName":"张淑荣"},{"authorName":"张鹏","id":"b7a4d835-1a81-485d-9237-e1778e1f3ae7","originalAuthorName":"张鹏"}],"doi":"","fpage":"361","id":"96e791f6-4ec2-450e-85ec-770f944fa8b4","issue":"4","journal":{"abbrevTitle":"CHXB","coverImgSrc":"journal/img/cover/CHXB.jpg","id":"18","issnPpub":"0253-9837","publisherId":"CHXB","title":"催化学报 "},"keywords":[{"id":"60961671-9258-4437-912d-b6c24e43bb16","keyword":"α-熊果苷","originalKeyword":"α-熊果苷"},{"id":"862feca7-92b2-4560-a8e0-653d26f57e5c","keyword":"黄单胞菌","originalKeyword":"黄单胞菌"},{"id":"06d469a5-38f8-428d-9c88-392fd22b3232","keyword":"发酵","originalKeyword":"发酵"},{"id":"fb2b9276-df6b-4174-900d-75e1d91dbc75","keyword":"生物催化","originalKeyword":"生物催化"},{"id":"722d56b2-6087-4525-918b-43697e94c41c","keyword":"对苯二酚","originalKeyword":"对苯二酚"},{"id":"df50c27b-397d-4f65-aae7-1c7b3ed0acb0","keyword":"蔗糖","originalKeyword":"蔗糖"},{"id":"5ed463e2-7068-41f5-9272-dc7afd444a33","keyword":"化妆品","originalKeyword":"化妆品"}],"language":"zh","publisherId":"cuihuaxb200604017","title":"黄单胞菌生物催化合成α-熊果苷","volume":"27","year":"2006"},{"abstractinfo":"结合野外工作和前人资料,对华熊地块熊耳山地区金矿床进行了分析,认为该区金矿床从控矿构造和围岩蚀变特征上可划分为两类,矿床的流体包裹体、成矿温度以及盐度特征,说明了它们的形成均与中生代富钾质、富含挥发组分的花岗质岩体(100~140Ma)有关,主要形成于挤压向拉张环境中.该区金矿床属于与侵入岩有关的金矿系统中的浅成低温热液矿床,可与近年来在环太平洋带发现的斑岩型金矿对比.","authors":[{"authorName":"马桂霞","id":"e551ff77-bf17-4c56-95e2-e3dd23b1dff0","originalAuthorName":"马桂霞"},{"authorName":"朱海","id":"77bcaeb7-13cc-4f71-a0f2-b238e2edcf74","originalAuthorName":"朱海"}],"doi":"10.3969/j.issn.1001-1277.2004.10.005","fpage":"15","id":"17268516-903f-4f7c-9420-307022cc8449","issue":"10","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"0ae9ffbe-2a7b-4afe-a5d8-35c2167eaf84","keyword":"华熊地块","originalKeyword":"华熊地块"},{"id":"509ec8be-f883-4b6b-ae3f-343aab5f4341","keyword":"金矿床","originalKeyword":"金矿床"},{"id":"3a8413a1-2823-48ba-94c9-2d95a076df65","keyword":"浅成低温热液型","originalKeyword":"浅成低温热液型"},{"id":"23266d01-2191-4d7b-bbd8-7a44a6b20275","keyword":"控制因素","originalKeyword":"控制因素"}],"language":"zh","publisherId":"huangj200410005","title":"华熊地块熊耳山地区金矿床特征及控矿因素研究","volume":"25","year":"2004"},{"abstractinfo":"以熊果酸(UA)为模板分子,4-乙烯基吡啶(4-VP)为功能单体,二甲基丙烯酸乙二醇酯(EGDMA)为交联剂,采用表面分子印迹技术,合成了对天然活性物质熊果酸具有较好选择性的表面分子印迹聚合物(MIPs). 用紫外光谱分析了模板分子与功能单体之间的相互作用;用IR和SEM测试技术分别对表面印迹聚合物进行了结构表征和表面形貌观察;静态吸附平衡实验和Scatchard分析结果表明,该印迹聚合物中存在着2类不同的结合位点,离解常数分别为1.02×10-4和8.97×10-4mol/L. 与化学组成相同的非印迹聚合物相比,MIPs对熊果酸有较高的选择性和吸附性. 用该MIPs作为固相萃取剂,相对于齐墩果酸的富集因子为30倍.","authors":[{"authorName":"杨律文","id":"93c6b2a7-79a6-4eec-b3cc-6a917ee2cff7","originalAuthorName":"杨律文"},{"authorName":"刘含茂","id":"cbfd5ccd-5369-45be-ae69-dcd441ce248d","originalAuthorName":"刘含茂"},{"authorName":"屈贺幂","id":"40166203-4d91-4201-a550-0150cbfb455d","originalAuthorName":"屈贺幂"},{"authorName":"曾松军","id":"764d4967-ae77-4e42-90ac-05d0010b84e3","originalAuthorName":"曾松军"},{"authorName":"熊远钦","id":"f01e47f6-bb77-4fb3-b7d7-cda4b76553a6","originalAuthorName":"熊远钦"},{"authorName":"徐伟箭","id":"51857bf6-bfa2-411e-96c8-1b24ce3f125e","originalAuthorName":"徐伟箭"}],"doi":"10.3969/j.issn.1000-0518.2008.02.003","fpage":"137","id":"e9e19d15-edb7-4509-85be-a530060707f6","issue":"2","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"1476ed14-2d24-4bf5-b69b-0b702ddb34c4","keyword":"熊果酸","originalKeyword":"熊果酸"},{"id":"9aa7e36a-af80-420c-bb97-46422368be9d","keyword":"齐墩果酸","originalKeyword":"齐墩果酸"},{"id":"c905ee7b-c19d-41bc-b4e2-58229010c97a","keyword":"表面分子印迹","originalKeyword":"表面分子印迹"},{"id":"c166c7c2-bdfc-404f-9ec9-f0060b3fb776","keyword":"Scatchard分析","originalKeyword":"Scatchard分析"},{"id":"60f22f01-b868-4a47-bc29-44e092cbdbd0","keyword":"固相萃取","originalKeyword":"固相萃取"}],"language":"zh","publisherId":"yyhx200802003","title":"硅胶表面熊果酸分子印迹聚合物的制备和分子识别特性","volume":"25","year":"2008"},{"abstractinfo":"以熊果酸为母体化合物,对其3-OH和17-COOH进行结构修饰,设计合成了9个熊果酸衍生物,其结构经IR、1H NMR和MS测试技术确证;噻唑蓝(MTT)比色法考察了所合成衍生物对体外人肝癌细胞HepG2培养增殖的抑制作用,结果显示受试衍生物均对细胞增殖有一定抑制作用,且呈剂量依赖性,其中衍生物9的抑制作用最强;衍生物9与细胞作用24 h后,经Hoechst33342/PI双染色,倒置荧光显微镜下观察,出现细胞凋亡所具有的高蓝色/低红色荧光图;流式细胞术检测细胞周期发现:细胞被阻滞于S期,且阻滞作用随药物浓度的增加而增强.","authors":[{"authorName":"林凤屏","id":"025b6bd2-87dc-42e3-bb9d-0e07a724e927","originalAuthorName":"林凤屏"},{"authorName":"邵敬伟","id":"3188440f-7a67-4a98-973d-6ea40ed1b2f1","originalAuthorName":"邵敬伟"},{"authorName":"杜华东","id":"a547adce-cb88-48e9-b8cb-f96035027c99","originalAuthorName":"杜华东"},{"authorName":"代永超","id":"9b81b8d5-3323-4400-848b-532f9748275e","originalAuthorName":"代永超"},{"authorName":"王涛","id":"1be01b50-4f94-493f-9b08-82f1771ae105","originalAuthorName":"王涛"}],"doi":"10.3724/SP.J.1095.2010.90706","fpage":"893","id":"2455f79f-9e98-4901-8337-de799a0991dc","issue":"8","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"5ab08f95-bd4d-4b04-8582-3b2dc06bc847","keyword":"熊果酸","originalKeyword":"熊果酸"},{"id":"27c18113-67a9-422a-988e-000fe3035679","keyword":"衍生物","originalKeyword":"衍生物"},{"id":"11386cb7-cc19-4bc6-a122-7d5ece3155a4","keyword":"合成","originalKeyword":"合成"},{"id":"300b4168-4322-4354-8ee7-b253d5f3dce2","keyword":"抗癌活性","originalKeyword":"抗癌活性"}],"language":"zh","publisherId":"yyhx201008005","title":"熊果酸衍生物的合成、表征及其对癌细胞的抑制活性","volume":"27","year":"2010"},{"abstractinfo":"建立浓缩苹果汁样品中熊果苷的固相萃取-超高效液相色谱-串联质谱(SPE-UPLC-MS/MS)检测方法.浓缩苹果汁样品用水溶解、过滤后,用聚苯乙烯-二乙烯基苯共聚物(PS-DVB)固相萃取柱净化,外标法定量.测定时用Eclipse Plus C18色谱柱(100 mm×2.1 mm, 1.8 μm)分离,甲醇-水系统梯度洗脱;MS测定采用多反应监测(MRM)模式.熊果苷的检出限为0.02 mg/L,在0.04~2.0 mg/L 的范围内标准溶液的峰面积与质量浓度呈良好的线性关系,回收率为75.2% ~102.7% ,相对标准偏差(RSD)低于8.9% .该方法简便、快速、灵敏,可用于浓缩苹果汁样品中熊果苷的检测和确证.","authors":[{"authorName":"孔祥虹","id":"3cb9d95f-facf-45c6-9d56-b5c2c6d72bb4","originalAuthorName":"孔祥虹"},{"authorName":"何强","id":"7c67d108-9b8b-4556-afa9-e7c1f8a59872","originalAuthorName":"何强"},{"authorName":"乐爱山","id":"76a75f19-3145-437d-8afa-72d70c4effe5","originalAuthorName":"乐爱山"},{"authorName":"吴双民","id":"6bb33639-1244-4edf-bbb1-d86635b503a5","originalAuthorName":"吴双民"},{"authorName":"李建华","id":"69ede377-fc88-4a52-ab56-e939015ac353","originalAuthorName":"李建华"}],"doi":"10.3724/SP.J.1123.2010.00632","fpage":"632","id":"92e1332b-f65d-403b-8cba-60ed6a5081d6","issue":"6","journal":{"abbrevTitle":"SP","coverImgSrc":"journal/img/cover/SP.jpg","id":"58","issnPpub":"1000-8713","publisherId":"SP","title":"色谱 "},"keywords":[{"id":"22a6d6b0-0afa-4952-a42f-0bdc4d0d6e54","keyword":"超高效液相色谱-串联质谱","originalKeyword":"超高效液相色谱-串联质谱"},{"id":"14c2f50b-abaf-4914-b7f8-6b08b3adc086","keyword":"熊果苷","originalKeyword":"熊果苷"},{"id":"b9f80701-9b9a-4d4d-afe0-b99364433261","keyword":"浓缩苹果汁","originalKeyword":"浓缩苹果汁"}],"language":"zh","publisherId":"sp201006019","title":"超高效液相色谱-串联质谱法测定浓缩苹果汁中的熊果苷","volume":"28","year":"2010"},{"abstractinfo":"熊耳山地区是华北陆块南缘重要的金多金属成矿带,成矿构造复杂,成矿条件优越,区域内金矿床类型复杂,按容矿建造和定位空间将熊耳山地区的金矿床划分为4种金矿床类型.熊耳山地区金矿床的形成受多重因素的共同控制,主要有地层、构造和岩浆岩因素,且构造控矿因素占主导地位.","authors":[{"authorName":"徐刚","id":"5aae445a-5f4d-4c89-b60f-380c73724eb8","originalAuthorName":"徐刚"},{"authorName":"张有","id":"ac8722a4-0ff1-4943-93f2-811361a713e4","originalAuthorName":"张有"},{"authorName":"方荣","id":"5e6c10e4-0b7a-4694-99d5-6a3602cf6926","originalAuthorName":"方荣"},{"authorName":"左家","id":"ea4ad984-bcd5-414c-aef7-b6145a6c49c1","originalAuthorName":"左家"}],"doi":"10.11792/hj20130207","fpage":"25","id":"4fc4ae64-42de-4dae-bed5-81978a60b3a8","issue":"2","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"e5e0942c-44ae-4b5a-8884-82c17e9f3302","keyword":"金矿床类型","originalKeyword":"金矿床类型"},{"id":"21c58cce-db33-4723-9a63-719f8f71fb00","keyword":"控矿因素","originalKeyword":"控矿因素"},{"id":"3814db1f-e0a4-4497-9a55-60931045f204","keyword":"熊耳山地区","originalKeyword":"熊耳山地区"}],"language":"zh","publisherId":"huangj201302007","title":"河南省熊耳山地区金矿床类型及控矿因素分析","volume":"34","year":"2013"}],"totalpage":8683,"totalrecord":86821}