【英文标准名称】:Waterquality-Determinationofdissolvedanionsbyliquidchromatographyofions-Determinationofbromide,chloride,nitrate,nitrite,orthophosphateandsulfateinwastewater
【原文标准名称】:水的质量.用液态离子色谱法测定已溶解的阴离子.第2部分:在废水中溴化物、氯化物、氮化物、亚硝酸盐、正磷酸盐和硫酸盐的测定
【标准号】:BSENISO10304-2-1997
【标准状态】:作废
【国别】:英国
【发布日期】:1997-01-15
【实施或试行日期】:1997-01-15
【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】:质量;水;阴离子;氯化物;液相色谱法;再现性;废水;试样制备;废弃物;校正;化学水污染物;水质试验;含量测定;硫酸盐;亚硝酸盐;溴化物;正磷酸盐;干扰(化学);离子交换法;工业水污染物;硝酸盐
【英文主题词】:Analysis;Anions;Bromides;Chemicalanalysisandtesting;Chemistryofwater;Chlorides;Chromatography;Concentration(chemical);Determination;Determinationofcontent;Examinationofwastewater;Fluorides;HPLC;Ion-exchangechromatography;Ion-exchangemethods;Liquidchromatography;Massconcentration;Nitrates;Nitrites;Orthophosphates;Phosphates;Physico-chemicalmethods;Sewage;Soluble;Solutes;Solventextractionmethods;Standardmethods;Sulphates;Testequipment;Testing;Water;Waterpollution;Waterpractice;Waterquality;Watertesting
【摘要】:1GeneralThispartofISO10304specifiesamethodforthedeterminationofthedissolvedanionsbromide,chlor-ide,nitrate,nitrite,orthophosphateandsulfateinwastewaters.Theworkingrangeslistedintable1maybeobtainedbyanappropriatesamplepretreatment(e.g.dilution)andbyapplyingaconductivitydetector(CD)oraUV-detector.2Interferences2.1Organicacids,suchasmonocarboxylicordicarboxylicacids,caninterferewiththedetermi-nationofinorganicanions.2.2Inabufferedeluent(e.g.carbonate/hydrogencarbonate),thedeterminationwillnotbeinfluencedbythesamplepHintherangeofpH2topH9.2.3LargeconcentrationdifferencesbetweentheanionsBr,Cl,NO3,NO2,PO4andSO4mayleadtotypicalcross-sensitivityinterferencescausedbyaninsufficientseparation.Therespectiveconcentrationsgivenintable2weretypicalforconductivitydetectorsandUV-detectors;nointerferencescouldbeobservedwithasamplevolumeof50μI.Thedatagivenarevalidonlywhenthequalityrequirementsspecifiedforthecolumnsaremet(seeclause6).Thedetermi-nationofchloridemaybesubjecttointerferencefromhighfluorideconcentrations.2.4Thedeterminationofsulfatemaybesubjecttointerferencebyhighiodideorthiosulfateconcen-trations.Relations:SO4/IorSO4500Cross-sensitivitiestootheranions,suchasBr,Cl,NO3,NO2,PO4andSO4,mayoccur,especiallyinthepresenceofsulfiteionswhoseretentionstronglydependsontheselectivityoftheseparatingcolumnused.Inorganicanionssuchasfluoroborateorchloritecaninterferewiththedeterminationofthenamedin-organicanions.NOTE1Theidentificationofsomeanions(e.g.nitrite)orthedetectionofinterferences(e.g.fattyacids)canbefa-cilitatedbyusingaconductivitydetectorandUV-detectorplacedinseries.Anioncombinations(e.g.Cl/Iwhicharenotlistedintable2willnotinterfereinthespecifiedrangeofapplication.Solidparticlesandorganiccompounds(suchasmin-eraloils,detergentsandhumicacids)shortenthelifetimeoftheseparatingcolumnandarethereforeeliminatedbeforetheanalysisisstarted(seeclause7).Sulfideionscancauseerrorsduringthedeterminationofsulfate;theyareeliminatedaccordingtoclause7.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:30P;A4
【正文语种】:英语


【英文标准名称】:Aluminium;Half-finishedProducts
【原文标准名称】:铝.半成品
【标准号】:DIN1712T.3-1976
【标准状态】:作废
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【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
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【摘要】:
【中国标准分类号】:
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