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1.
应用超临界流体萃取技术(SFE)脱除云南小粒咖啡豆中的咖啡因,取得较好效果;采用顶空气相色谱、色/质谱手段,对SFE处理前后的咖啡中的香味成分进行了对比分析,提出了一种用于进行咖啡香味鉴评的模型。  相似文献   

2.
KZnF3:Eu的水热合成及其光谱性质   总被引:2,自引:0,他引:2  
采用中温水热法合马了立方钙钛矿单相KZnF3及KZnF3:Eu,通过SEM观察了产物形态.XPS测定结果表明,产物含氧量不高。荧光光谱及ESR谱表明,KZnF3:Eu体系中Eu^2+与Eu^3+共存,进一步讨论了不等价取代中的电荷补偿途径。  相似文献   

3.
EFFECTIVEINFLUENCEOFTHESUPPORTSURFACEVACANTSITESONTHEDISPERSIONSTATEOFFe2O3SUPPORTEDONVARIOUSMETALOXIDESChenKaidong,DongLin,Y...  相似文献   

4.
EFFECTS OF GAS FLOW RATE ON CLARK-TYPE OXYGEN GAS SENSOR¥ShanJunLIU;HanXiSHEN(DepartmentofChemistry,NankaiUniversity,Tianjin,...  相似文献   

5.
SYNTHESIS, STRUCTURE AND LUMINESCENCE PROPERTIES OF K_2VOF_5 AND K_3VO_2F_4SYNTHESIS,STRUCTUREANDLUMINESCENCEPROPERTIESOFK_2V...  相似文献   

6.
FLUORESCENCE STUDIES ON SELF-ASSEMBLING BEHAVIOR OF AMPHIPHILES WITH NAPHALENE-1,5-DIOXY GROUPFLUORESCENCESTUDIESONSELF-ASSEM...  相似文献   

7.
FACILEANDSELECTIVEREDUCTIONOFNTIROARENESINTHEPRESENCEOFNITRILESWITHNaBH_4-BiCl_3SYSTEM¥PingDaREN,ShiFengPAN,TingWeiDONG,ShiHui...  相似文献   

8.
SYNTHESISANDCHARACTERIZATIONOFNEIVPICKETFENCECROWN-PORPHYRINANDITSZn(Ⅱ),Fe(Ⅲ)COMIPLEXES¥YangdeWU,FaChengQIAN,LianFangSHENa(De...  相似文献   

9.
ONE-POTSTEREOSELECTIVESYNTHESISOFFUSEDRINGSYSTEMSCONSISTINGOFISOXAZOLINEANDTETRAHYDRO-FURAN,-THIOPHENE,OR-PYRROLEVIAINTRAMOLE...  相似文献   

10.
ASYMMETRIC SYNTHESES OF STEREOTSOMERS OF SECODEMETHYLCLAUSENAMIDE¥JinFSDU;JinZHOUandLiarHUANG(InstituteofMateriaMedica,Chines...  相似文献   

11.
SYNTHESIS,CRYSTAL STRUCTURE AND MAGNETISM OF THE COMPLEX:GdFe(CN)_64H_2OSYNTHESIS,CRYSTALSTRUCTUREANDMAGNETISMOFTHECOMPLEX:GdF...  相似文献   

12.
STUDIESONTHESYNTHESESOFFAVELINESGangLIN;XueChaoWANGandXinFuPAN(DepartmentofChemistry,NationalLaboratoryofAppliedOrganicChemis...  相似文献   

13.
THE NON-TEMPLATE SYNTHESIS OF MACROCYCLIC SCHIFF BASE DERIVED FROM THIOPHENE,AND ITS Ag(Ⅰ),Hg(Ⅱ) COMPLEXESTHENON-TEMPLATESYNT...  相似文献   

14.
SYNTHESISANDCHARACTERIZATIONOFC_(60)NAr,THEFIRSTAZIRIDINEFULLERENEDERIVATIVE¥JunFENG,JiShengLa,GuoXiaoDONG,GaiJiaoJI(Institut?..  相似文献   

15.
COMPARISONOFCATALYTICREACTIVITIESOFTRIPHENYL-PHOSPHINECOMPLEXESOFRu,Rh,Pd,Fe,Co,NiINTHEMALEICANHYDRIDEHYDROGENATIONCOMPARISON...  相似文献   

16.
EFFECTSOFSTEAMONTHESTRUCTUREOFPtSn/MgAl2O4CATALYSTSSTUDIEDBYXRAYDIFFRACTIONDongWensheng,,WangXinkui,PengShaoyi(ShanxiInstit...  相似文献   

17.
SYNTHESIS, SURFACE POTENTIAL AND NONLINEAR OPTICAL PROPERTIES OF NEW AMPHIPHILIC PORPHYRINSSYNTHESIS,SURFACEPOTENTIALANDNONLI...  相似文献   

18.
ASIMPLE,EFFICIENTPROCEDUREFORTIIESYNIIESISOFSOMEAMINOACIDLINKEDURREIDOPHOSPHORAMIDATEDERIVATIVESRuYuCHENandJiaZHOU.(Institute...  相似文献   

19.
ANEWFISCHER┐TROPSCHCATALYSTFORTHEPRODUCTIONOFLIGHTALKENESFROMSYNGASXuLongya,WangQingxia,XuYide,YangLi,HuangJiasheng(StateKeyL...  相似文献   

20.
THECALCULATIONOFRATECONSTANTOFELECTRONTRANSFERREACTIONATELECTRODESYinShengWU;ZhengYuZHOU;AiPingFUChemistryDepartment,QufuNorm...  相似文献   

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