SamplePreparationTypically,titaniumandzirconiumsamplesarechemicallyetchedtoremovesurfacecontaminationwhenoxygenandnitrogenaredetermined.However,etchingcanintroducehydrogenintothesample.ASTMmethodE1409"DeterminationofOxygenandNitrogeninTitaniumandTitaniumAlloysbytheInertGasFusionTechnique",asupdatedin1996,permitseitheretchingorabrading(filing)ofthetestspecimen.ASTME1447"DeterminationofHydrogeninTitaniumandTitaniumAlloysbytheInertGasFusionThermalConductivity/InfraredDetectionMethod"permitssurfacepreparationbyabrading(ifnecessarytoremovecontamination).DifferencesinsamplepreparationpresentsomewhatofadilemmaregardingsimultaneousdeterminationofO,N,andHintitanium.However,abradingsampleswithafiletoremovesurfacecontaminationwillyieldaccurateO,N,andHresults.TheONH836utilizesahigh-powerelectrodefurnacetoquicklyandefficientlyreleasethetargetgasesfromwithinthesample,whichallowsforaveryrapidsimultaneousdeterminationofoxygen,nitrogen,andhydrogen.上海禹重實業(yè)有限公司致力于提供分析儀,，歡迎新老客戶來電,！溫嶺LECO氫分析儀

氧氮氫分析儀是快速、準確分析氧,、氮,、氫元素的、高性能儀器,，整機采用模塊化,、一體化設計，即主機由可靠的脈沖電極爐,、高靈敏高精度的檢測系統(tǒng),、布局合理和氣密性好的氣路系統(tǒng)、可靠耐用的電源系統(tǒng),、穩(wěn)定的電路系統(tǒng),、高校節(jié)能的水循環(huán)散熱系統(tǒng)等六個**的硬件模塊單元組成。氧氮氫分析儀的測量原理：測量范圍非常,。分析樣品時,，樣品被稱重后放到樣品端口中，然后用載氣進行沖洗,，防止大氣（含氧氣和氮氣）進入到爐子系統(tǒng)中。石墨坩堝在脈沖爐中脫氣,，以盡量減少自帶的污染,。經(jīng)過穩(wěn)定階段后樣品落入坩堝中并熔融。樣品中的氧與石墨坩堝中的碳反應生成一氧化碳,。氮和氫以單質(zhì)的形式釋放,。載氣和樣品氣體通過粉塵過濾網(wǎng)后再進入到氧化銅催化爐中，將一氧化碳氧化成二氧化碳,。二氧化碳進入到紅外池中用于測定氧含量,，被測后的氣體導入化學試劑管，這時二氧化碳和水被化學試劑除去,，氮元素通過熱導檢測池含量被測定,。測量氫時，載氣換為氮氣,，樣品氣體通過舒茨試劑而不是氧化銅催化劑,。測氧和氮時也可采用更廉價的氬氣作為載氣。義烏分析儀廠家分析儀,，就選上海禹重實業(yè)有限公司,，有需求可以來電咨詢,！

Instrumentcalibration/driftcorrectionf.Cleantheupperandlowerelectrodemanually,or,ifapplicable,removethecrucibleandpresstheanalyzebuttontocleanwiththeautomaticcleaner.g.Firmlyplaceagraphitecrucibleonthelowerelectrodetip.h.PresstheAnalyzebuttonontheinstrumentscreen,thelowerelectrodewillcloseandtheanalysissequencewillstartandendautomatically.i.Repeatsteps3bthrough3haminimumofthreetimesforeachcalibration/driftstandardused..Calibrate/driftfollowingtheprocedureoutlinedintheoperatorsinstructionmanual.

Instrumentcalibration/driftcorrection.a.Loginaminimumof3Standardreplicates.b.Weigha~1.000gramofacalibration/driftstandard,enterthemassandstandardidentificationintoappropriatereplicatefields.c.PresstheAnalyzebuttonontheinstrumentscreen.Afterashortdelay,theloadingheadslide-blockwillopen.d.Placethecalibration/driftstandardintotheopenportatthetopoftheloadinghead.e.PresstheAnalyzebuttonontheinstrumentscreenagain,theloadingheadslide-blockwillcloseandthelowerelectrodewillopen.分析儀，就選上海禹重實業(yè)有限公司,，用戶的信賴之選,，有想法的不要錯過哦！

MethodSelectionTwomethodsaredescribedinthisapplicationnote;eithermethodcanbeusedtoanalyzeiron,steel,nickel-,andcobalt-basealloys.ThePrecisionMethodisrecommendedforgeneraluseandwillprovidethebestprecisionandaccuracythroughoutthetypicalO,N,andHconcentrationsfoundinthisgroupofmetals;approximatecycletimeis3.5minutes.TheFastTrackmethodcanbeusedwherespeedofanalysisisacriticalcomponent;forexample,whenmoltenmetalisbeingsampledandresultsarerequiredintheshortestpossibletime.Thismethodwillproducesuitableresultsformostsamples;approximatecycletimeis2.25minutes.Asnotedabove,samplingandsamplepreparationarekeyelementstoaccurateO,N,andHdeterminationaswell.Itisuptotheusertodeterminewhichmethodbestmeetstheirneeds.分析儀,，就選上海禹重實業(yè)有限公司,，用戶的信賴之選，有需要可以聯(lián)系我司哦,！力可氧分析儀耗材

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Procedure–Powder/ChipSamplesInstrumentcalibration/driftcorrection.Addapproximately0.05gof***GraphitePowdertoa***GraphiteCrucible.Firmlyplacethecrucibleonthelowerelectrodetiporappropriateautoloaderposition.PresstheAnalyzebuttonontheinstrumentscreen,thelowerelectrodewillcloseandtheanalysissequencewillstartandendautomatically.Repeatsteps3bthrough3iaminimumofthreetimesforeachcalibration/driftstandardused.溫嶺LECO氫分析儀

上海禹重實業(yè)有限公司專注技術(shù)創(chuàng)新和產(chǎn)品研發(fā)，發(fā)展規(guī)模團隊不斷壯大,。公司目前擁有較多的高技術(shù)人才,，以不斷增強企業(yè)重點競爭力，加快企業(yè)技術(shù)創(chuàng)新,，實現(xiàn)穩(wěn)健生產(chǎn)經(jīng)營,。誠實、守信是對企業(yè)的經(jīng)營要求,，也是我們做人的基本準則,。公司致力于打造***的光譜儀，色譜儀,，質(zhì)譜儀,，樣品前處理。公司力求給客戶提供全數(shù)良好服務,，我們相信誠實正直,、開拓進取地為公司發(fā)展做正確的事情，將為公司和個人帶來共同的利益和進步,。經(jīng)過幾年的發(fā)展,，已成為光譜儀，色譜儀,，質(zhì)譜儀,，樣品前處理行業(yè)出名企業(yè)。