BS EN 14524-2004 食品.贻贝中okadaic酸的测定.固相萃取清洁、衍生和荧光检测的HPLC法
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【英文标准名称】:Foodstuffs-Determinationofokadaicacidinmussels-HPLCmethodwithsolidphaseextractionclean-up,derivatizationandfluorimetricdetection
【原文标准名称】:食品.贻贝中okadaic酸的测定.固相萃取清洁、衍生和荧光检测的HPLC法
【标准号】:BSEN14524-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2004-08-18
【实施或试行日期】:2004-08-18
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:实验室试验;水;残留物;毒性;食品添加剂;实验室;食品检验;试验;固相萃取;清洁处理;高效液相色谱分析法;添加剂;分析;方法;含量;贻贝;规范;含量测定;高效液相色谱法;化学分析和试验;液相色谱法;规范(验收);测定;食品;毒物;分类系统;分析方法;酸
【英文主题词】:Acids;Additives;Analysis;Chemicalanalysisandtesting;Classificationsystems;Cleaning;Content;Determination;Determinationofcontent;Foodadditives;Foodinspection;Foodproducts;Foodtesting;Highperformanceliquidchromatography;HPLC;Laboratories;Laboratorytesting;Laboratorytests;Liquidchromatography;Methods;Methodsofanalysis;Mussels;Residues;Solidphaseextraction;Specification(approval);Specifications;Testing;Toxic;Toxin;Water
【摘要】:Thisdocumentspecifiesamethodforthequantitativedeterminationofthecontentofokadaicacidinmusselsandmusselproducts.Thecontentofokadaicacidisdeterminedasfreeextractableacidofmusselhepatopancreas.Okadaicacid,afat-solubletoxinfromdinophysisalgae,isamaincomponentofdinophysistoxins.ThemethodhasbeenvalidatedinaninterlaboratorystudyaccordingtoISOgeneralprinciplesonassessingaccuracyofmeasurementmethodsandresults.Thelimitofdeterminationofthismethod(signal/noise=10)is100μg/kgforokadaicacidinmusselhepatopancreas.Themethodhasbeenvalidatedforokadaicacidincookedmusselsatlevelsof441μg/kgto1467μg/kg.Laboratoryexperienceshaveshownthatthismethodcanalsobeusedtodetermineotherdinophysistoxins,e.g.dinophysistoxins1,2and3(DTX-1,DTX-2andDTX-3),see[1],[2],[3],[4],[5]and[6]
【中国标准分类号】:X20
【国际标准分类号】:67_120_30
【页数】:18P;A4
【正文语种】:英语
【英文标准名称】:High-voltageswitches-Part1:High-voltageswitchesforratedvoltagesabove1kVandlessthan52kV;Amendment2
【原文标准名称】:第2次修改
【标准号】:IEC60265-1AMD2-1994
【标准状态】:作废
【国别】:国际
【发布日期】:1994-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/SC17A
【标准类型】:()
【标准水平】:()
【中文主题词】:高压开关设备;开关;高压电器;电气工程
【英文主题词】:electricalengineering;high-voltageswitchgears;switches;high-voltageequipment
【摘要】:
【中国标准分类号】:K43
【国际标准分类号】:29_120_40
【页数】:5P;A4
【正文语种】:英语
【英文标准名称】:Soundsystemequipment-Microphones
【原文标准名称】:音响系统设备.传声器
【标准号】:BSEN60268-4-2004
【标准状态】:作废
【国别】:英国
【发布日期】:2004-05-12
【实施或试行日期】:2004-05-12
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Acoustoelectricdevices;Amplitude;Classification;Distortionfactors;Dynamics;Electricalengineering;Electricalequipment;Electroacoustics;Environmentalcondition;Frequencycurve;Frequencyresponse;Impedance;Influencequantity;Marking;Measurement;Measuringtechniques;Microphones;Naturalnoisevoltage;Noise;Non-linearity;Operatingconditions;Parameters;Properties;Referenceaxes;Referencecurve;Soundpressure;Soundpressurelevel;Soundtransmission;Symmetry;Testing;Transfercoefficient;Transmissiondevices;Transmissionsystems;Voltagemeasuring
【摘要】:ThispartofIEC60268specifiesmethodsofmeasurementfortheelectricalimpedance,sensitivity,directionalresponsepattern,dynamicrangeandexternalinfluencesofsoundsystemmicrophones,andalsogivesrecommendationsastocharacteristicstobespecified.Itappliestosoundsystemmicrophonesforallapplicationsforspeechandmusic.Itdoesnotapplytomeasurementmicrophones,butitdoesapplytoeachaudiochannelofmicrophoneshavingmorethanonechannel,forexampleforstereoorsimilaruse.Itisalsoapplicabletoflush-mountedmicrophonesandtotheanaloguecharacteristicsofmicrophoneswithdigitalaudiooutput.ForthepurposesofthisInternationalStandard,amicrophoneincludesallsuchdevicesastransformers,pre-amplifiers,orotherelementsthatformanintegralpartofthemicrophone,uptotheoutputterminalsspecifiedbythemanufacturer.NOTEThecharacteristicsspecifiedinthisstandarddonotcompletelydescribethesubjectiveresponseofthemicrophone.Furtherworkisnecessarytofindnewdefinitionsandmeasurementproceduresforalaterreplacementbyobjectivecharacteristicsofatleastsomeofthesubjectivedescriptionsusetodescribemicrophoneperformance.
【中国标准分类号】:M72
【国际标准分类号】:33_160_50
【页数】:50P.;A4
【正文语种】:英语