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Maxcel 777
• 高质量的氧化钛克劳斯催化剂
• 对羰基硫和二硫化碳转化为硫化氢的转化率高
• 优异的化学&物理性质提供长的使用寿命，且能抗工况变化
• 优异的抗硫酸盐化中毒
• 相同硫转化率下可在更高空速下操作，使其在达到同样效果
下，可对新或改造的装置选用更小的克劳斯反应器来降低成本。
选用氧化钛催化剂，克劳斯装置通常具备下面一个以上条件：
• 工艺气含有高羰基硫和二硫化碳浓度
• 严格的硫排放标准
• 酸性气体含有的硫化氢浓度低
• 没有尾气处理装置
• 需要减轻尾气处理单元的转化要求
• 装置采用低露点反应器
• 装置有超级克劳斯反应器
Maxcel 777 是在美国阿克萨斯州小石城Porocel公司的工厂
生产
若要咨询更多关于克劳斯催化剂或其他产品和服务的信息，请联系Porocel公司中国区办公室。
or 86（21）5039 5780。
海藻酸锌纳米凝胶超声雾化吸入安全性评价*岳晓月，吴佳蓉，王艳秋，崔元璐（天津中医药大学中医药研究院，天津301617）摘要：[目的]制备一种纳米凝胶以期作为药物输送的理想载体，并观察其超声雾化吸入后对小鼠气管和肺组织的影响，初步探讨该给药方式的安全性和可行性。
[方法]采用反相微乳法制备海藻酸锌纳米凝胶（ALG-NPs ），并通过粒径与Zeta 电位，透射电子显微镜（TEM ），差示扫描量热（DSC ）以及傅里叶变换红外光谱（FT-IR ）对其进行表征分析。
将48只BALB/c 小鼠随机分为4组，分别为空白对照组、ALG-NPs 低、中、高（100、150、200mg/kg ）剂量组，每组分为7d 、14d 2个亚组。
超声雾化吸入给药，每日1次，20min/次，于末次雾化1h 后进行血清、肺组织匀浆检测及组织病理学分析。
[结果]ALG-NPs 平均粒径为（71.24±2.12）nm ，Zeta 电位为（-19.4±0.64）mV ，表征分析结果表明纳米凝胶体系构建成功。
与空白对照组相比，ALG-NPs 低、中剂量组肺组织和气管的组织切片病理分析未见异常且血清及肺组织匀浆中炎症因子水平正常。
ALG-NPs 高剂量组（14d ）肺组织偶有炎症细胞浸润且血清及肺组织匀浆中白介素-6（IL-6）水平显著升高。
[结论]ALG-NPs 作为药物载体，中低剂量给药是安全的，但长期大剂量地吸入对呼吸系统有一定的刺激性，应合理控制给药剂量与时间。
关键词：海藻酸锌；纳米凝胶；超声雾化吸入；安全性中图分类号：R283文献标志码：A文章编号：1672-1519（2019）09-0909-07*基金项目：国家自然科学基金面上项目（81741119）。
作者简介：岳晓月（1993-），女，硕士研究生，从事中药学制剂方向研究。
通讯作者：崔元璐，E-mail ：ylcui@ 。
DOI ：10.11656/j.issn.1672-1519.2019.09.19近年来，纳米药物制剂在基础研究和临床实践中展现出巨大的潜力。
盐酸倍他司汀化学名为N-甲基-2-吡啶乙胺二盐酸盐，属于组胺类药物，是一种常用的血管扩张药物。
盐酸倍他司汀主要用于治疗椎基底动脉供血不足、美尼尔氏综合症、脑动脉硬化、不稳定心绞痛，取得了一定的治疗效果；对高血压所致直立性眩晕、耳鸣等亦有效[1-4]。
印度药典[5]收载有盐酸倍他司汀片溶出度的测定方法，也有文献[6]研究了盐酸倍他司汀片溶出度的检测方法，但是未对溶出度方法进行筛选。
本文参照印度药典及日本橙皮书《医疗用药品品质情报集》的相关内容，建立了简便、准确、可行、精密度高的方法来测定盐酸倍他司汀的溶出度。
1实验部分1.1仪器与试药仪器：Agilent 1260型高效液相色谱仪、紫外检测器和色谱工作站，美国安捷伦科技公司；SOTAX AT7smart 自动溶出仪，瑞士SOTAX 公司；Mettlexpe105电子天平，梅特勒-托利多国际有限公司。
试剂与药品：甲醇（色谱纯），Merck 公司；纯化水、无水乙酸钠（分析纯）、1-庚烷磺酸钠（分析纯）、三乙胺（色谱纯）、冰乙酸（分析纯）、盐酸（分析纯），国药集团化学试剂有限公司；盐酸倍他司汀工作用对照品（批号为：100265-201203，w =99.6%）、盐酸倍他司汀片（批号为：T171251，T171252，T171253，4mg/片），上海上药中西制药有限公司。
1.2样品处理1.2.1供试品溶液取样品适量，采用2015年版《中华人民共和国药典》（四部）“溶出度与释放度测定”第二法（浆法），以盐酸溶液(pH=1.2)为溶出介质，体积为900mL ，转速为50r/min ，温度为（37±5）℃。
依法操作，于30min 时取溶出液适量，滤过，取续滤液，即得供试品溶液。
1.2.2对照品溶液取盐酸倍他司汀对照品适量，精密称定，加盐酸溶液(pH=1.2)溶解并定量稀释制成每1mL 中约含4μg 盐酸倍他司汀的溶液，作为对照品溶液。
1.3色谱条件色谱柱：Waters Symmetry C 18柱（4.6mm ×150mm ，5μm ）；流动相：0.01mol/L 的醋酸钠缓冲液（含0.004mol/L 庚烷磺酸钠，0.2%三乙胺，用冰醋酸调节pH=3.3)-甲醇（体积比为70∶30）；流速：1.0mL/min ；紫外检测波长：261nm ；进样量：20μL ；柱温：25℃。
二硫化四乙基秋兰姆液相方法
二硫化四乙基秋兰姆，也被称为促进剂TETD，是一种有机化合物，化学式为C10H20N2S4。
这种化合物具有白色或淡黄色结晶性固体，熔点为70-74℃，沸点为117℃，相对密度为1.27。
二硫化四乙基秋兰姆是一种橡胶硫化促进剂，属于秋兰姆类橡胶硫化促进剂。
这种促进剂焦烧快，硫化速度也快，属于超速硫化促进剂。
硫化平坦性虽小，但能得到抗张强度、定伸强度和硬度高的硫化橡胶。
因此，它可用作二烯类橡胶的助硫化促进剂或无硫磺硫化剂，也可作为低不饱和橡胶的硫化促进剂。
此外，二硫化四乙基秋兰姆还有其他用途。
例如，它可以作为天然橡胶、丁苯橡胶、丁腈橡胶、丁基橡胶、顺丁橡胶及胶乳的超促进剂和硫化剂，还可作为杀菌剂和杀虫剂使用。
在医疗领域，它也常被用作抗酒精中毒的药物。
然而，二硫化四乙基秋兰姆也具有一定的危险性。
根据世界卫生组织国际癌症研究机构的致癌物清单初步整理参考，该物质被归类为3类致癌物。
此外，应避免直接接触这种化合物，以防止可能对皮肤造成的刺激和伤害。
二硫化四乙基秋兰姆是一种重要的化学物质，在多个领域都有广泛的应用。
然而，由于其潜在的危险性，应谨慎处理和使用这种物质。
如需更多关于二硫化四乙基秋兰姆液相
方法的详细信息，建议咨询化学领域专业人士或查阅相关文献资料。
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Industrial ProductsIndustrial Vehicles International, Inc.INOX LubricantINTECIntegrated GeophysicsIntelliGISINTERCONTINENTAL LUBRICANTS CORP Intercontinental Lubricants Corp.InterflonInterline ResourcesInterlube Corp.International Resource CompanyInterpexIntershipIntertechIntevepIntevepIP ITALIANA PETROLI, S.P.A.IRDCIRVING OIL LIMITED - LUBRICANTS DIVISION Irving Oil Ltd.J. D. STREETT & COMPANY INC.J. M. Huber CorporationJ.B. MARKETING, INC.J.D. Streett & Co. Inc.J.J.Crewe & Son, IncJAMES PETROLEUMJapan EnergyJAPAN ENERGY CORPORATIONJAPAN SUN OIL COMPANY LIMITEDJason Geosystems BVJB ChemicalsJCB INC.Jenkin Guerin Inc.Jesco Resources Inc.Jet-Lube Inc.JFT SystemsJOHN DEERE LIMITEDJohn SharryJOHNSON OIL COMPANYJOIL DISTRIBUTIONJP OilJunell Corp.K.K. AUTOBACS SEVENKABUSHIKI KAISHA AUTO RKandle Oilfield ProductsKANEMATSU CORPORATIONKarl Thompson & Associates, Inc.Kelsan Lubricants USA LLCKendallKENDALL MOTOR OIL, A DIVISION OF SUN COMPANY INC (R&M) Kent Oil Co.Kernel Technologies Ltd.KerniteKettlitzKeystone LubricantsKIEL BROS. OIL COMPANY, INC.Kimes Petrotech Associates IncKing IndustriesKINKI OIL COMPANY, LIMITEDKluber LubricationKlüber Lubrication & Summit Industrial Klüber - Extribo BrnoKN EnergyKOCOLENE OIL CORP.KOI AUTO PARTS INC.Kontakt ChemieKORAMO KOLIN, A.S.Korea National Oil COmpanyKOSTAS AUTO INCKR AndersonKRAFFT, S.A.KRAUSE GENTLE CORPORATIONKUBOTA TRACTOR CORPORA TIONKuhbierKuwait National Petroleum CompanyKuwait PetroleumKWIK KINGKWIKTRIP, INCKYGNUS SEKIYU K.K.Kyodo YushiKYUSHU OIL CO. LTDL & L OilLafayette Association of Petroleum LandmenLAIDLAW ENVIRONMENTAL SERVICES dba VINOCO OIL INC. Landmark GraphicsLandproLaser Oil Co.LASMO plcLasser Inc.Leahy-Wolf Co.LenoxLexam ExplorationsLG EngineeringLG-Caltex (Korea)LG-Caltex OilLG-CALTEX OIL CORPORATIONLilyblad PetroleumLIL YBLAD PETROLEUM INC.LINK BELT CONSTRUCTION EQUIP CO.Lion OilLiqui MolyLIQUI MOL Y GMBHLIQUIDOS ESPECIALIZADOS S.A. DE C.V. (LIQESA) LLANTAS Y VEHICULOS, SALoctite CorporationLogTech Canada Ltd.Logtek ASLONDON DRUGS LIMITEDLouis Dreyfus Natural GasLOVES COUNTRY STORES, INC.Lowe Oil Co.LOWE OIL COMPANYLPSLPS Laboratories,Inc.LubeConLubeCon Systems Inc.LubeGredientsLubemaster Div. ofLubeservLUBRICANTES DE AMERICA S.A. DE C.V. LUBRICANTES DELTA S.A.LUBRICANTES INTERNACIONALES VITESS, S.A. LUBRICANTES VENOCO INTERNACIONAL C.A. LUBRICANTES ZETA, S.A. DE C.V.Lubricating Specialities Co.Lubrication Engineers 2 3LUBRICATION ENGINEERS INC.Lubrication Engineers, Inc.Lubrication Systems CompanyLubrication Technology Inc,LUBRIFIANT SAINT-LAURENT INC.Lubriplate LubricantsLubriplate LubricantsLubritec InternationalLUBRITECH INCLubrizolLUGESA MONTERREY, S.A. DE C.V.LukOil (Russian Oil Company)Lyondell LubricantsL YONDELL-CITGO REFINING CO. LIMITEDM & A OIL CO. DE MEXICO, S.A. DE C.V.M.S.I., Ltd.MACH 4, INCMacro OilMacro Specialty Industries Inc.MagnafluxMAGNETI MARELLI IBERICA S.A.MAGNETI MARELLI S.P.A.Magnetic PulseMamco SpacefillerMammoth GeophysicalMap Oil ToolsMAPCO Inc.MAPCO PETROLEUM INC.MarathonMARA THON ASHLAND PETROLEUM LLC Marathon Oil CompanyMaraven (Venezula)Marschall Acoustics GroupMARTIN & BAYLEY, INC.Maryn Lubricants Inc.Mathtech PakistanMaurer Engineering Inc.MA VERIK COUNTRY STORES, INC. Maxwell LaboratoriesMay LubricationMAZDA MOTOR CORPORA TIONMAZDA MOTOR OF AMERICA, INC.MBDHMcCollister & Co.MCCOLLISTER & COMPANYMcGee Industries lnc.McLube & SailkoteMcPhail Fuel CompanyMeguinMEIJER, INC.MELROE COMPANY - (PARTS OPERATIONS) MemolubMerak ProjectsMercatMERIT OIL CORPORATIONMetafluxMetal Lubricants Co.Metalcote/Chemtool Inc.Metalworking Lubricants Inc.MEXICANA DE LUBRICANTES, S.A. DE C.V. Meyer & AssociatesMFA OIL COMPANYMichael HarveyMicrolonMid Town PetroleumMID TOWN PETROLEUMMidland Southwest SoftwareMid-Town Petroleum Inc.MIDWEST OIL COMPANYMighty Lube SystematicLubrication, Inc. MIKADO OIL COMPANY, LTD.Milacron MilacronMillennium PetrochemicalsMILLER ENTERPRISESMillers OilMiller-StephensonMiltec IncorporatedMincomMind & Vision Computer SystemsMINERV A-OIL SARLMINIT MART FOODS, INCORPORATEDMinuteman Lubricants Inc.MiracleCoverMITSUBISHI OIL CO. LTDMITSUI OIL & GAS CO. LTD.Mobil OilMOBIL SEKIYU KABUSHIKI KAISHAModern Log Analysis Company Pty LtdModricaMOHAWK LUBRICANTS LIMITEDMOL HUNGARIAN OIL AND GAS COMPANYMolub AlloyMolybdenum TrioxideMOLYDUV ALMolykote / CredimexMolyslip Molyslip UKMonroe Fluid TechnologyMonsanto CompanyMontedisonMoraine Oil Sales lnc.MORRIS & COMPANY LTD. (MORRIS LUBRICANTS) Morris Environmental/SpillNetMorris Lubricants Morris Lubricants 2Mosaic OilMosilMotorkoteMOTOROL (INDIA) LIMITEDMotorol (India) Ltd.MotulMotul / TransmotoMOTUL S.A.MSDSMueller ExplorationMullen Circle Brand Inc.Multiphase SolutionsMultiTherm CorporationMurphy Oil CorporationMURRAYS DISCOUNT AUTO STORESMuscle ProductsMustang EngineeringMUSTANG LUBRICANTS C/O PETRO-CANADA MWD ManagementNA TIONAL AUTOMOTIVE PARTS ASSOCIATION National Injection Services, Inc.National Oil Products Inc.NA TIONAL PRONTO ASSOCIATIONNational-OilwellND IndustriesNeatsfoot Oil RefineriesNeo Synthetic Oil Co.Neo Synthetic Oil Co. Inc.NeotecNeovalNesteNeutecNEW HOLLAND NORTH AMERICA, INC. Niagara LubricantNiagara Lubricant Co. Inc.NIHON KOJUN COMPANY, LIMITEDNIKKO SANGYO CO., LTD.Nippon Oil (Nihon Sekiyu)NIPPON OIL COMPANY, LTD.NISSAN CANADA,INC.NISSAN MOTOR CO., LTD.Nitz OilNocoNoco Energy Corp.NOCO ENERGY CORPORATIONNoco LubricantsNorandaNorris Industrial LubricantsNorsk HydroNORTHEAST PRODUCTS CO. INC.Northern PetroSearchNorthland Products Co.NORTHLAND PRODUCTS COMPANY Northwest Geophysical AssociatesNorton Petroleum Corp.NovagardNuCalgon ProductsNuevo EnergyNUTECH SERVICES, INC.Nye LubricantsNynasOak International Inc.Occidental Chemical CorporationOceandril Inc.OCS (Outer Continental Shelf) BBSOel-BrackOEL-BRACK AGOemetaOhio lndustrial Lubricants Inc.Oil and Natural Gas Corporation Ltd.Oil Center Research Inc.Oil SpotOilfield Equipment ManagerOilfield Production Consultants (OPC) LimitedOilfield SystemsOiltownOilwareOKSOLCOOLD WORLD INDUSTRIES, INC.Olin CorporationOLIPES, S.L.OmegaOMEGA MANUFACTURING DIVISIONOmnes?MVONE STOP AUTO PARTS, INCOnsyr IncOolithica GeoscienceOptimolO'REILL Y AUTO PARTSOrelube Corp.Orion CoatingsOTECO, Inc.Ovation Data ServicesOVERW AITEA FOOD GROUP, DIV. OF GREAT PACIFIC INDUSTRIES INC. OY ESSO ABOY TEBOIL AB / SUOMEN PETROOLI OYOZAW A & COMPANY LTDPACCAR AUTOMOTIVE INC.Pacer LubricantsPACIFIC RIM ASSOCIATES K.K.PACTOR GMBHPal ProductsPAM OIL, INC.PanCanadian Petroleum LimitedPanTerra Geoconsultants BVPanther SoftwareParadigm GeophysicalParaminsParker DrillingParker Laboratories, Inc.PARTS DEPOT, INC.PARTS PLUS HEADQUARTERSPathfinder LubricantsPennzoil - Quaker State MSDSPENNZOIL BOLIVIA S.A.Pennzoil Products Co.PENNZOIL PRODUCTS COMPANYPEP BOYS, MANNY, MOE & JACK, INCPerez Companac S.A.Performance Sciences, Inc.Perkins Products Inc.PermaPerma USAPermabondPERTAMINAPetris TechnologyPETRO CANADAPetro CapitalPetro LogPetrobrasPETROBRAS DISTRIBUIDORA S.A. (BR)Petro-Canada 2Petro-Canada LubricantsPetrochemPetroconsultantsPetroDynamicsPetroExpoPetroferm, Inc.PETROL TRGOVINA, R.O.Petroleos de VenezuelaPetroleum Information (ERICO) LimitedPETROLEUM PACKERS, INC.Petrolink ServicesPetrologicPETROLON EUROPE LTD., C/O PETROLON INTERNATIONAL S.A.M. PETROLUB INTERNATIONAL CO. LTD.PetromapPETROMIN LUBRICA TING OIL COPetromolyPetron Corp.Petron International lnc.PetrophysicsPetrosys Pty. Ltd.PetrotechPetrovePetrowayPFS Performance Fuel SpecialistsPhillips 66PHILLIPS 66 COMPANYPhillips 66 LubricantsPhillips PetroleumPhillips Petroleum CompanyPico Chemical Corp.PINNACLE OIL INC.PIRA Energy GroupPITT PENN OIL CO.Place ResourcesPlatt, Sparks & Associates Consulting Petroleum Engineers, Inc. Platte River AssociatesPlatt'sPolartechPolartech Ltd.POLONIA NEDERLAND IM-EXPORT B.V.POLOTHINK PETROLEUM PRODUCTS CO. LTD.Power Up LubricantsPREMIER FARMTECHPremier OilPremium Industrial SalesPrimrose Oil Co. Inc.Prism TechnologiesProcess Support ASProChemTechProdePRODUCTOS TEXACO, S.A. DE C.V.PRODUITS LUBRI-DELTA INC.Progressive ProductsProject Team Geoscience ConsultantsPro-LabPronolPROPYL, S.A.Pro-Tech International Inc.ProTechnics InternationaPSI Parts Service InternationalPSP JAPAN LTD.PulsarlubePURE POWER! INCORPORA TEDQ8Qatar General Petroleum CorporationQatar Lubricants Company LTDQC DataQMIQSP MARKETING, INC.Quaker State Corp.QUAKER STATE CORPORATIONQUIKTRIP CORPORATIONQuipBrokers International ASQUIV ACOLOR, S.L.R&S STRAUSS, INC., DBA STRAUSS DISCOUNT AUTO R&W InternationalR.S. CLare & Co., Ltd.R.T. Vanderbilt Co. Inc.Raffineries ImperatorRALOY LUBRICANTES, S.A. DE C.VRaycoRebsRed Line OilReeves Wireline Technologies LimitedReltonRemington EnergyRenewabie LubricantsREPSOL DISTRIBUCION S.A.RevolRhenusRhone-Poulenc Inc.Richard Mozley LimitedRidge and AssociatesRidgidRivoltaRobishaw EngineeringRock V alley Oil & Chemical Co.RockWareRohloffRohm and HaasRohMaxROOT COMPANY, LIMITEDRosco Laboratories,Inc.ROSEMEAD OIL PRODUCTS INC.Royal Lubricants Co. lnc.Royal Manufacturing Co.ROY AL PURPLE, INC.RPM GROUPRuwco Oil and Gas CorporationRWE DISTRIBUTORS INCRWE-DEAS.A. Holditch and AssociatesS.A. TEXACO BELGIUM N.V.SA ADDIXSA CARBUROLSAE DatabaseSAFETY KLEEN CANADA INC., LUBRICANTS DIV. Safety-KleenSAFETY-KLEEN, LUBRICANTS DIV.SAFEWAY STORES INC.Saf-T-EzeSaga Petroleum ASASAH PETROLEUMS LIMITEDSahara Oil Co.SahlbergSAKURA SEIYUJO CO., LTD.SALADO SALESSalem ServicesSANKYO YUKA KOGYO K.K.SantotracSantovacSANW A CHEMICAL MANUFACTURING CO., LTD. SANYU KAGAKU KOGYO K.K.SasolSatecmaSATURN CORPORA TIONSavalon lnc.Schaeffer Mfg. Co.SCHAEFFER MFG. COMPANYSchaeffer's Specialized LubricantsSchwaben AGScience Applications International Corporation (SAIC)SCOT LUBRICANTS OF PENNSYLV ANIAScotia GroupSeaboard Industries Inc.SEABOARD INDUSTRIES, INC.Seafarer MarineSea-Land Chemical CompanySEARS CANADA INC.SeascapeSecurity DBSSeis Pros International, Inc.SeiScan GeoDataSeisNavSelco Synthetic LubricantsSensor Highway Ltd.Sentinel ProductsSetralSF SERVICES INC.SFR Co.SHANGHAI OIL REFINERYSHANXI JAPAN ENERGY LUBRICANTS CO., LTD. SHARJAH NATIONAL LUBE OIL COMPANY LIMITED SHEETZ, INC.ShellSherwin Williams Paints (SearchEngine)SHINNIHON YUSHI KOUGYO COMPANY, LTD SHOW A SHELL SEKIYU K.K.Sidekick Tools IncSilicones UnlimitedSIMON XPRESSSIMPSON PERRY OIL COMPANYSimulation SciencesSINCLAIR OIL COMPANYSINGAPORE PETROLEUM COMPANY LIMITEDSipsSky Mart LubricantsSlick 50 Corp.SLOVNAFT JOINT STOCK COMPANYSMITHS FOOD & DRUG CENTERS, INC.SOBEY'S, INC.SOFRA (HAFA LUBRIFIANTS FRANCE)Soilvision Systems Ltd.Solene Industrial LubricantsSonatSonoco。
