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href="http://www.cdcfah.com/cp/third-yjkc_kcjscl/">庫(kù)存金屬材料</a>?河北天然氣地質(zhì)X熒光元素分析儀上海贏洲科技供應(yīng)</p><div id="czqn8rt" class="leftbox clearfix"><h1>河北天然氣地質(zhì)X熒光元素分析儀上海贏洲科技供應(yīng)</h1><div id="yw7uo79" class="proBig"><div id="8wd8dof" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/yingzhou/637084836233164063/1816347.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hcenu49" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/yingzhou/637084836233164063/1816347.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zz3i8l7" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>河北天然氣地質(zhì)X熒光元素分析儀,X熒光</p><p><span>***更新：</span>2020-08-09 07:04:23</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="po7fjyj" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">贏洲科技（上海）有限公司</a></p><p><span>聯(lián)系人：</span>戴小姐</p><p><span>郵箱: </span>563950983@qq.com</p><p><span>電話: </span>18202125770</p><p><span>傳真: </span>021_54845086</p><p><span>網(wǎng)址: </span>http://www.winzoner.com</p><p><span>手機(jī): </span>021-34636566</p><p><span>地址: </span>上海市閔行區(qū)滬閔路4200號(hào) IF創(chuàng)意產(chǎn)業(yè)園E棟408 </p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ygiura8" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="2fwyk74" class="box"><p><p> X射線熒光分析中激發(fā)X射線的方式一般有三種：（1）用質(zhì)子、粒子或其他離子激發(fā)；（2）用電子激發(fā)；（3）用X射線或低能射線激發(fā)。 </p> <p> X熒光分析的特點(diǎn)：（1）靈敏度高：比紫外-可見分光光度法高2～4個(gè)數(shù)量級(jí)；（2）選擇性強(qiáng)：既可選擇發(fā)射光譜，又可選擇吸收光譜；（3）試樣量少；（4）缺點(diǎn)：應(yīng)用范圍小。 </p> <p> 1，河北天然氣地質(zhì)X熒光元素分析儀.3 X射線熒光分析的定性和定量分析 </p> <p> 1.3.1 定性分析 </p> <p> 定性分析是用測(cè)角儀進(jìn)行角度掃描，通過晶體對(duì)X射線熒光進(jìn)行分光，河北天然氣地質(zhì)X熒光元素分析儀，記錄儀記錄譜圖，再解析譜圖中的譜線以獲知樣品中所含的元素。莫萊斯定律是定性分析的基礎(chǔ)，它指出了特征X射線的波長(zhǎng)與元素原子序數(shù)的一一對(duì)應(yīng)關(guān)系，河北天然氣地質(zhì)X熒光元素分析儀。元素的熒光X射線的波長(zhǎng)(l)，隨元素的原子序數(shù)(Z)增加有規(guī)律地向短波方向移動(dòng)。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 奧林巴斯手持式合金能譜儀應(yīng)用于汽車制造業(yè)。河北天然氣地質(zhì)X熒光元素分析儀</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北天然氣地質(zhì)X熒光元素分析儀,X熒光" src="http://tyunfile.71360.com/UploadFile/yingzhou/637084836233164063/1816347.png"></div><p> X射線熒光分析儀在水泥生產(chǎn)中的應(yīng)用· </p> <p> <br /> </p> <p> 摘要:X射線熒光光譜作為常規(guī)分析手段，始于20世紀(jì)50年代經(jīng)歷了50年的發(fā)展，現(xiàn)已成為物質(zhì)組成分析的必備方法之一。X射線熒光光譜分析儀是一種先進(jìn)的儀器分析方法，近一二十年來(lái)，隨著科學(xué)技術(shù)和計(jì)算機(jī)技術(shù)的發(fā)展，這種分析方法得到日益***的應(yīng)用。國(guó)外先進(jìn)國(guó)家在水泥科研領(lǐng)域和水泥工業(yè)生產(chǎn)中，已***采用X射線熒光光譜儀進(jìn)行水泥產(chǎn)品及其原材料化學(xué)成分分析和生料配料的控制，取得了良好的效果。 </p> <p> <br /> 湖南土壤化學(xué)X熒光光譜儀奧林巴斯手持式X熒光分析儀。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北天然氣地質(zhì)X熒光元素分析儀,X熒光" src="http://tyunfile.71360.com/UploadFile/yingzhou/637084836234072266/7541363.png"></div><p> 當(dāng)較外層的電子躍入內(nèi)層空穴所釋放的能量不在原子內(nèi)被吸收,而是以輻射形式放出,便產(chǎn)生X 射線熒光,其能量等于兩能級(jí)之間的能量差.因此,X射線熒光的能量或波長(zhǎng)是特征性的,與元素有一一對(duì)應(yīng)的關(guān)系. K層電子被逐出后,其空穴可以被外層中任一電子所填充,從而可產(chǎn)生一系列的譜線,稱為K系譜線:由L層躍遷到K層輻射的X射線叫Kα射線,由M層躍遷到K層輻射的X射線叫Kβ射線 ……. </p> <p> 同樣,L層電子被逐出可以產(chǎn)生L系輻射.如果入射的X 射線使某元素的K層電子激發(fā)成光電子后L層電子躍遷到K層,此時(shí)就有能量ΔE釋放出來(lái),且 ΔE=EK-EL,這個(gè)能量是以X射線形式釋放,產(chǎn)生的就是Kα 射線,同樣還可以產(chǎn)生Kβ射線 ,L系射線等.莫斯萊(H.G.Moseley) 發(fā)現(xiàn),熒光X射線的波長(zhǎng)λ與元素的原子序數(shù)Z有關(guān),其數(shù)學(xué)關(guān)系如下: λ=K(Z-s)-2 這就是莫斯萊定律,式中K和S是常數(shù),因此,只要測(cè)出熒光X射線的波長(zhǎng),就可以知道元素的種類,這就是熒光X射線定性分析的基礎(chǔ).此外,熒光X射線的強(qiáng)度與相應(yīng)元素的含量有一定的關(guān)系,據(jù)此,可以進(jìn)行元素定量分析. </p><p> K，S常數(shù)，隨譜系(L，K，M，N)而定。 </p> <p> 目前絕大部分元素的特征X射線均已準(zhǔn)確測(cè)出，新型的X射線熒光光譜儀已將所有譜線輸入電腦儲(chǔ)存，掃描后的譜圖可通過應(yīng)用軟件直接匹配譜線。 </p> <p> 1.3.2 </p> <p> 定量分析 </p> <p> 定量分析是對(duì)樣品中指定元素進(jìn)行準(zhǔn)確定量測(cè)定。定量分析需要一組標(biāo)準(zhǔn)樣品做參考。常規(guī)定量分析一般需要5個(gè)以上的標(biāo)準(zhǔn)樣品才能建立較可靠的工作曲線。 </p> <p> 常規(guī)X射線熒光光譜定量分析對(duì)標(biāo)準(zhǔn)樣品的基本要求： </p> <p> ①組成標(biāo)準(zhǔn)樣品的元素種類與未知樣相似（比較好相同）； </p> <p> ②標(biāo)準(zhǔn)樣品中所有組分的含量應(yīng)該已知； </p> <p> ③未知樣中所有被測(cè)元素的濃度包含在標(biāo)準(zhǔn)樣品中被測(cè)元素的含量范圍中； </p> <p> ④標(biāo)準(zhǔn)樣品的狀態(tài)（如粉末樣品的顆粒度、固體樣品的表面光潔度以及被測(cè)元素的化學(xué)態(tài)等）應(yīng)和未知樣一致，或能夠經(jīng)適當(dāng)?shù)姆椒ㄌ幚沓梢恢隆? 奧林巴斯手持式合金分析儀。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北天然氣地質(zhì)X熒光元素分析儀,X熒光" src="http://tyunfile.71360.com/UploadFile/yingzhou/637085001626621094/3303445.png"></div><p> 1 X射線熒光光譜儀的原理 </p> <p> X射線熒光是一種由于原子內(nèi)部結(jié)構(gòu)變化所導(dǎo)致的現(xiàn)象。眾所周知，一個(gè)原子由原子核及核外電子組成，若內(nèi)層電子受到足夠能量的X射線照射，會(huì)脫離原始運(yùn)行軌道釋放出電子，并在該電子殼層上產(chǎn)生電子空位，此時(shí)該電子空位會(huì)被處于高能量電子殼層的電子通過自發(fā)性躍遷填補(bǔ)。由于不同電子殼層之間存在著能量差并以熒光（二次X射線）的形式釋放出來(lái)，而不同元素所釋放出來(lái)的二次X射線能量也不同，因此，只要測(cè)出熒光X射線的波長(zhǎng)或者能量，就可以確定元素的種類，對(duì)元素進(jìn)行定性分析;另外，熒光強(qiáng)度與元素在樣品中的含量也有一定關(guān)系，從而可以進(jìn)行對(duì)元素進(jìn)行半定量或定量分析。奧林巴斯手持式XRF檢測(cè)儀。湖南高分子材料X熒光檢測(cè)儀</p><p style="text-indent:25px"> 奧林巴斯手持式合金光譜儀應(yīng)用于航空航天業(yè)。河北天然氣地質(zhì)X熒光元素分析儀</p><p style="text-indent:25px">郭冬發(fā)等濕法化學(xué)分析采用硫酸亞鐵還原-釩酸銨電位滴定法測(cè)定巖心礦樣中鈾（測(cè)定范圍為0.01%以上的鈾），試驗(yàn)結(jié)果表明與XRF分析結(jié)果具有良好的一致性[5]；詹秀春等采用粉末壓樣-X射線熒光光譜法測(cè)定地質(zhì)樣品中痕量元素Cl、Br、S[7、8]；張勤等采用低壓聚乙烯鑲邊墊底的粉末樣品壓片制樣，用PW2440 X射線熒光光譜儀對(duì)多目標(biāo)地球化學(xué)調(diào)查樣品中的組分進(jìn)行測(cè)定[8、9]。用于材料成分辨別，快速精確識(shí)別合***號(hào)現(xiàn)場(chǎng)元素識(shí)別系統(tǒng)。堅(jiān)固耐用且經(jīng)濟(jì)實(shí)用的手持式XRF分析儀河北天然氣地質(zhì)X熒光元素分析儀</p><p style="text-indent:25px">贏洲科技（上海）有限公司創(chuàng)建于2018-08-20，注冊(cè)資金 1000-2000萬(wàn)元，辦公設(shè)施齊全，辦公環(huán)境優(yōu)越，已***實(shí)行網(wǎng)絡(luò)化辦公，**提高了速度和效率。奧林巴斯是贏洲科技（上海）有限公司的主營(yíng)品牌，是專業(yè)的從事儀器儀表科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓、機(jī)電設(shè)備、機(jī)械設(shè)備安裝、維修、批發(fā)、零售、儀器儀表，實(shí)驗(yàn)室設(shè)備、環(huán)保設(shè)備、計(jì)算機(jī)、軟件及輔助設(shè)備、光電設(shè)備、五金交電，自動(dòng)化設(shè)備批發(fā)、零售，商務(wù)信息咨詢。從事貨物及技術(shù)進(jìn)出口業(yè)務(wù)。公司，擁有自己**的技術(shù)體系。我公司擁有強(qiáng)大的技術(shù)實(shí)力，多年來(lái)一直專注于從事儀器儀表科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓、機(jī)電設(shè)備、機(jī)械設(shè)備安裝、維修、批發(fā)、零售、儀器儀表，實(shí)驗(yàn)室設(shè)備、環(huán)保設(shè)備、計(jì)算機(jī)、軟件及輔助設(shè)備、光電設(shè)備、五金交電，自動(dòng)化設(shè)備批發(fā)、零售，商務(wù)信息咨詢。從事貨物及技術(shù)進(jìn)出口業(yè)務(wù)。的發(fā)展和創(chuàng)新，打造高指標(biāo)產(chǎn)品和服務(wù)。自公司成立以來(lái)，一直秉承“以質(zhì)量求生存，以信譽(yù)求發(fā)展”的經(jīng)營(yíng)理念，始終堅(jiān)持以客戶的需求和滿意為**，為客戶提供質(zhì)量的[ "文博考古分析儀", "地質(zhì)勘探分析儀", "海洋勘探分析儀", "手持式固廢分析儀" ]，從而使公司不斷發(fā)展壯大。</p></p><br /><p>文章來(lái)源地址: 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