美国CHEMetrics R-1501型氨填充盒
价格:1990.00
美国CHEMetricsR-1501型氨填充盒用于测试水中氨含量。例如:饮用水,清洁地表水,优质硝化废水,海水。是使用K-1510型氨测试盒中的补充品。规格参数:产品类型Ammonia—CHEMets®Refill产品型号R-1501测试方法直接奈瑟琳化方法测试次数30次/盒产品价格咨询上海益朗仪器有限公司辅助器具C-1501型低范围氨比色筒、C-1510型高范围氨比色板、A-1500型稳定剂溶液、A-1501型稳定剂溶液、A-0027型1mL移液器、A-0013型25mL样品杯CHEMets®是美国CHEMetrics的专利(专利号:3,634,038)。美国CHEMetrics氨测试盒VisualKits测试范围MDL测试方法测试盒货号填充盒货号0-4&0-80ppm0.125ppmHydroxybenzylAlcohol(HBA)K-1420R-14020-125&0-2500ppm8ppmHydroxybenzylAlcohol(HBA)K-1420DR-1402D0-500&0-10000ppm30ppmHydroxybenzylAlcohol(HBA)K-1420BR-1402B0-1&1-10ppm0.05ppm直接奈瑟琳化方法K-1510R-15010-30&30-300ppm5ppm直接奈瑟琳化方法K-1510DR-1501D0-60&60-600ppm10ppm直接奈瑟琳化方法K-1510AR-1501A0-120&120-1200ppm20ppm直接奈瑟琳化方法K-1510BR-1501B0-1000&1000-10,000ppm100ppm直接奈瑟琳化方法K-1510CR-1501CInstrumentalKits测试范围测试方法测试包目录0-3.00&0-60.0ppmHydroxybenzylAlcohol(HBA)K-14130-7.00ppm直接奈瑟琳化方法K-15030-14.0ppm直接奈瑟琳化方法K-1523MethodsLow-levelammonianitrogenmaybenaturallypresentinwaterasaresultofthebiologicaldecayofplantandanimalmatter.Higherconcentrati***insurfacewaterscanindicatecontaminationfromwastetreatmentfacilities,rawsewage,industrialeffluents(particularlyfrompetroleumrefineries),orfertilizerrunoff.Excessiveammoniaconcentrati***aretoxictoaquaticlife.TheDirectNesslerizationMethodReference:ASTMD1426-08,AmmoniaNitrogeninWater,TestMethodA.APHAStandardMethods,18thed.,Method4500-NH3C–1988.Thetestkitsemployingthewell-establishedNesslerreagent*todetermineammoniaconcentrati***areapplicabletodrinkingwater,cleansurfacewater,good-qualitynitrifiedwastewatereffluent,andseawater.Insomewaters,calciumandmagnesiumconcentrati***cancausecloudinessofthereagent.Addingafewdropsofstabilizersolution(RochelleSalt)willpreventthiscloudiness.Referencesrecommenddistillingsamplespriortoanalysis.Resultsareexpressedasppm(mg/L)ammonia-nitrogen,NH3-N.Shelf-life:althoughtheNesslerreagentisstable,itshighalkalicontentattackstheglassampoule.Theresultingprecipitateinterfereswithcolorcomparison.WerecommendstockingquantitiesofCHEMets®andVACUettes®ampoulesthatwillbeusedwithinfivemonths.Atwo-monthsupplyofVacu-vialsampoulesissuggested.Refrigerationwilldramaticallyextendtheshelf-lifeoftheseproducts.*Containsmercury.Dis***eaccordingtolocal,stateorfederallaws.TheHydroxybenzylAlcohol(HBA)MethodReferences:Krom,MichaelD.,SpectrophotometricDeterminationofAmmonia:AStudyofaModifiedBerthelotReductionUsingSalicylateandDichloroisocyanurate,TheAnalyst,V105,pp.305-316,1980.IntheammoniatestmethodthatemploystheHydroxybenzylAlcoholchemistry,freeammoniareactswithhypochloritetoformmonochloramine.MonochloraminereactswithHBA,inthepresenceofsodiumnitroferricyanide,toformagreencoloredcomplex.Thistestmethodmeasuresthesumoffreeammoniaandmonochloramine.Resultsareexpressedinppm(mg/L)ammonia-nitrogen,NH3-N.TheHydroxybenzylAlcoholMethodofferssensitivitysimilartotheNesslerizationMethodandthereisnogenerationofmercury-containingwaste.)
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