衢州化学分析仪厂家直销

SamplePreparationSamplingandsamplepreparationisanimportantissuebecausetraditionalmethodsusedtoobtainsamplesforoxygenandnitrogendeterminationaredifferentfromthoserecommendedforhydrogen,especiallywhensamplingmoltenmetal.Themaindifferenceinsteelsamplingproceduresforoxygen/nitrogenandhydrogenisduetothemobilityofhydrogen.Specialprecautionsmustbeusedwhensamplingforhydrogen.Frommoltensteelandiron,asamplemustbequicklyquenchedincoldwaterandchilledinarefrigerantsuchasliquefiednitrogenoramixtureofacetoneandsolidcarbondioxideinordertoreducelossesofhydrogenfromdiffusion.Lossesofoxygenandnitrogenfromdiffusionarenotaproblem.Asamplethatistakenforhydrogenandchilledinarefrigerantcanalsobeusedforoxygenandnitrogendetermination.However,asamplethatistypicallytakenforoxygenand/ornitrogendeterminationisnotsuitableforhydrogendeterminationduetohydrogenloss(diffusion).Surfacecontaminationmustberemovedbyfilingorlightgrinding,usingcarenottooverheatthesample.分析仪，就选上海禹重实业有限公司，让您满意，欢迎您的来电！衢州化学分析仪厂家直销

氧氮氢分析仪是快速、准确分析氧、氮、氢元素的、高性能仪器，整机采用模块化、一体化设计，即主机由可靠的脉冲电极炉、高灵敏高精度的检测系统、布局合理和气密性好的气路系统、可靠耐用的电源系统、稳定的电路系统、高校节能的水循环散热系统等六个**的硬件模块单元组成。氧氮氢分析仪的测量原理：测量范围非常。分析样品时，样品被称重后放到样品端口中，然后用载气进行冲洗，防止大气（含氧气和氮气）进入到炉子系统中。石墨坩埚在脉冲炉中脱气，以尽量减少自带的污染。经过稳定阶段后样品落入坩埚中并熔融。样品中的氧与石墨坩埚中的碳反应生成一氧化碳。氮和氢以单质的形式释放。载气和样品气体通过粉尘过滤网后再进入到氧化铜催化炉中，将一氧化碳氧化成二氧化碳。二氧化碳进入到红外池中用于测定氧含量，被测后的气体导入化学试剂管，这时二氧化碳和水被化学试剂除去，氮元素通过热导检测池含量被测定。测量氢时，载气换为氮气，样品气体通过舒茨试剂而不是氧化铜催化剂。测氧和氮时也可采用更廉价的氩气作为载气。江苏力可LECO氧氮氢分析仪优惠价格上海禹重实业有限公司致力于提供分析仪，有想法可以来我司咨询。

Procedure–Powder/ChipSamplesInstrumentcalibration/driftcorrection.Calibrate/driftfollowingtheprocedureoutlinedintheoperatorsinstructionmanual.AnalyzeSamples.LoginSamplewiththeappropriatenumberofreps.Weighapproximately***gramsofappropriatelypreparedsampleintoa***NickelCapsule,entermassandsampleidentificationintoappropriaterepfields.Ifapplicable,placethenickelcapsuleintheappropriateautoloaderposition.Repeatsteps3cthrough3iforsampleanalysis.

Procedure-SolidSamples：--Instrumentcalibration/driftcorrection.Placethenickelbasketcontainingthecalibration/driftstandardintotheopenportatthetopoftheloadinghead.PresstheAnalyzebuttonontheinstrumentscreenagain,theloadingheadslide-blockwillcloseandthelowerelectrodewillopen.Cleantheupperandlowerelectrodemanually,or,ifapplicable,removethecrucibleandpresstheanalyzebuttontocleanwiththeautomaticcleaner.上海禹重实业有限公司是一家专业提供分析仪的公司，有想法的可以来电咨询！

Procedure-SolidSamplesPreparetheinstrumentasoutlinedintheoperatorsinstructionmanual.Determinetheinstrumentblank.Loginaminimumof3Blankreplicates.PresstheAnalyzebuttonontheinstrumentscreen.Afterashortdelay,theloadingheadslide-blockwillopen.Placea502-344NickelBasketintotheloadinghead.Note:samplesusingautomationshouldbeplacedintheappropriateautoloaderpositionbeforestartingtheanalysissequence.Oncethesequencehasstarted,theautomaticanalysiswillstartandendautomatically.上海禹重实业有限公司分析仪服务值得放心。浦东新区分析仪采购

上海禹重实业有限公司是一家专业提供分析仪的公司，欢迎您的来电！衢州化学分析仪厂家直销

Instrumentcalibration/driftcorrectionf.Cleantheupperandlowerelectrodemanually,or,ifapplicable,removethecrucibleandpresstheanalyzebuttontocleanwiththeautomaticcleaner.g.Firmlyplaceagraphitecrucibleonthelowerelectrodetip.h.PresstheAnalyzebuttonontheinstrumentscreen,thelowerelectrodewillcloseandtheanalysissequencewillstartandendautomatically.i.Repeatsteps3bthrough3haminimumofthreetimesforeachcalibration/driftstandardused..Calibrate/driftfollowingtheprocedureoutlinedintheoperatorsinstructionmanual.衢州化学分析仪厂家直销

上海禹重实业有限公司成立于2013-10-22，位于上海市闵行区春申路2525号3幢339室，公司自成立以来通过规范化运营和高质量服务，赢得了客户及社会的一致认可和好评。公司主要经营光谱仪，色谱仪，质谱仪，样品前处理等，我们始终坚持以可靠的产品质量，良好的服务理念，优惠的服务价格诚信和让利于客户，坚持用自己的服务去打动客户。赛默飞世尔集中了一批经验丰富的技术及管理专业人才，能为客户提供良好的售前、售中及售后服务，并能根据用户需求，定制产品和配套整体解决方案。上海禹重实业有限公司以先进工艺为基础、以产品质量为根本、以技术创新为动力，开发并推出多项具有竞争力的光谱仪，色谱仪，质谱仪，样品前处理产品，确保了在光谱仪，色谱仪，质谱仪，样品前处理市场的优势。