內(nèi)蒙古PH計上海博取環(huán)境技術供應-b2b網(wǎng)站_b2b電子商務平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="上海博取環(huán)境技術有限公司，是一家年輕有活力專業(yè)能力強的生產(chǎn)銷售企業(yè)，內(nèi)蒙古PH計。近期為了***提高產(chǎn)品滿意度，內(nèi)蒙古PH計，公司在對產(chǎn)品性能升級的同時，內(nèi)蒙古PH計，也為了迎合慶祝祖國成立70周年，特推出獨特的新款顏色-------中國紅"><meta name="keywords" content="內(nèi)蒙古PH計,PH計"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="utvfhoq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/boqu123/637190816665751953/8582595.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ds8nk3w" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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)品關鍵詞：</span>內(nèi)蒙古PH計,PH計</p><p><span>***更新：</span>2020-07-02 00:31:57</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="rbtqnur" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海博取環(huán)境技術有限公司</a></p><p><span>聯(lián)系人：</span>吳龐博</p><p><span>郵箱: </span>2355456207@qq.com</p><p><span>電話: </span>15900820461</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>021-20966896</p><p><span>地址: </span>南匯新城鎮(zhèn)海洋一路333號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="lkhegdf" class="page-proshow02"><p class="title">詳細說明</p><div id="shewdpw" class="box"><p><p style="text-indent:25px">上海博取環(huán)境技術有限公司，是一家年輕有活力專業(yè)能力強的生產(chǎn)銷售企業(yè)，內(nèi)蒙古PH計。近期為了***提高產(chǎn)品滿意度，內(nèi)蒙古PH計，公司在對產(chǎn)品性能升級的同時，內(nèi)蒙古PH計，也為了迎合慶祝祖國成立70周年，特推出獨特的新款顏色-------中國紅！改善了以往工業(yè)品的黑色主調(diào)，解決了色調(diào)沉悶等缺點，工業(yè)品也可以有高顏值！新產(chǎn)品歡迎廣大顧客朋友來電咨詢選購，我們會根據(jù)客戶的需要，盡可能的去開發(fā)***的更適合客戶使用的高性價比產(chǎn)品，在標準的產(chǎn)品規(guī)格下我們可以接受量大客戶的定制要求歡迎來電咨詢在pH測定過程中應考慮待測溶液溫度及離子強度等因素.內(nèi)蒙古PH計</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)蒙古PH計,PH計" src="http://tyunfile.71360.com/UploadFile/boqu123/637190816665751953/8582595.jpg"></div><p> 請將pH測量計設為“pH”或“ATC”。3.請在室溫pH。4.利用“ZEROOFFSET（零位偏移）”、“STANDSARDIZED（標準化）”或“SET（設置）”旋鈕將pH示數(shù)準確調(diào)節(jié)為。5.用蒸餾水或去離子水沖洗電極。（這是單點校準的一個步驟。雙點校準請?zhí)敛襟E8。）6.將電極放入pH或pH的第二份緩沖液中。7.利用SLOPE（斜率）、CALIBRATE（校準）或GAIN（增益）控件（粗調(diào)）來調(diào)整pH示數(shù)，以顯示正確的數(shù)值。8.利用SLOPE旋鈕（精調(diào)）調(diào)整pH示數(shù)，以讀取正確數(shù)值。pH測量應用中的挑戰(zhàn)沒有任何復雜的pH問題是相同的。以下列表說明了測量pH值時可能遇到的問題類型以及如何處理這些問題。1.測量經(jīng)常會對pH系統(tǒng)造成擾動，包括可重復性誤差、測量噪聲和閥門遲滯等等。2.無論控制器處于何種模式和狀態(tài)，如果設定值處于滴定曲線的陡峭位置，內(nèi)嵌pH回路都會出現(xiàn)震蕩。3.當具有未密封端子的pH電極部件浸沒在液面以下時，**終會變成濕端子。4.如果反應物控制閥未與內(nèi)嵌系統(tǒng)的注入位置緊密連接，會引起反應物輸送出現(xiàn)重大延遲，而且難以發(fā)現(xiàn)。5.需要使用流量計或預測器才能診斷出反應物輸送問題。6.流量的前饋信號會與pH控制器的輸出相乘，用于直接操作反應物控制閥或者設定反應物流量控制值。北京PH計誠信合作先用pH7標準緩沖液對電計進行定位，再根據(jù)待測溶液的酸堿性選擇第二種標準緩沖液。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)蒙古PH計,PH計" src="http://tyunfile.71360.com/UploadFile/boqu123/637190816659296875/8801237.jpg"></div><p> 6.使用完標準緩沖液后用封口膜密封放在干燥的地方，以備多次使用。當所測的溶液pH值在小范圍內(nèi)時（如3-8），可以只用pH為。校準完成后，若pH計使用頻繁，每2天校準一次。如遇到下列情況，pH計需要重新校準：（1）電極在空氣中暴露過久，如半小時以上時。（2）測量過酸（pH《2）或過堿（ph》12）的溶液后。（3）換過電極后。（三）注意1、電極不用時，充分浸泡電極保護液中。電極保護液要及時更換，一星期更換一次。切忌用洗滌液或其他吸水性試劑浸洗或浸泡在純水中。2、測量濃度較大的溶液時，盡量縮短測量時間，用后仔細清洗，防止被測液粘附在電極上而污染電極。3、清洗電極后，不要用無塵紙擦拭玻璃膜，而應用無塵紙吸干，避免損壞玻璃薄膜、防止交叉污染，影響測量精度。4、測量中注意電極的銀—氯化銀內(nèi)參比電極應浸入到球泡內(nèi)氯化物緩沖溶液中，當外參比液少于1/3時，應及時添加，避免電極顯示部分出現(xiàn)數(shù)字亂跳現(xiàn)象。使用時，注意將電極輕輕甩幾下。5、電極不能用于強酸、強堿或其他腐蝕性溶液。6、嚴禁在脫水性介質(zhì)如無水乙醇、重鉻酸鉀等中使用。7、pH標準緩沖液應密封保存在干燥的地方。8、轉(zhuǎn)移出來的標準緩沖液必須盛在潔凈干燥的容器中。</p><p> 利用。例3．將pH值為8的NaOH溶液與pH值為10的NaOH溶液等體積混合后，溶液中氫離子濃度**接近于()×10－10mol/LB.(10－8＋10－10)mol/LC.(10－8＋10－10)mol/LD.(1×10－14－5×10－5)mol/L解析：按照，混合液的pH＝，對各選項分別試之，并舍去[H+]較小的，再取負對數(shù)。A的pH＝，B為－lg(×10－8)＝－lg(5×10－9)＜9；C為－lg10－8＝8；D為負數(shù)的對數(shù)，不正確。故應選A。例4．[OH－]＝10－6mol/L的NaOH溶液10mL加入10－5mol/L的NaOH溶液100mL后的溶液的pH值()A.等于8B.大于8C.小于8D.無法判斷解析：由于前者濃度比后者小，且體積*為后者的1／10，即使加入前者100mL于后者溶液中(即相當于等體積混合)，按，溶液的pH值也只減少，還是比8大。故應選B。例5．某氨水的pH＝X，某鹽酸的pH＝Y(jié)，已知X＋Y＝14，但X＞11。將上述氨水與鹽酸等體積混合后，所得溶液中各種離子濃度的關系正確的是()A.[]＞[Cl-]＞[OH-]＞[H+]B.[]＞[Cl-]＞[H+]＞[OH-]C.[Cl-]＞[]＞[H+]＞[OH-]D.[]＋[H+]＝[Cl-]＋[OH-]解析：如果將氨水換成一元強堿，按，反應后溶液pH＝7。但pH值相同且體積相等的氨水合一元強堿，氨水中氨氣的物質(zhì)的量比強堿大得多；故該氨水與鹽酸反應時，氨水過量很多，溶液應顯堿性。在進行操作前，應首先檢查電極的完好性。甘汞電極。由于復合電極使用比較***，以下主要討論復合電極。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)蒙古PH計,PH計" src="http://tyunfile.71360.com/UploadFile/boqu123/637190815951630860/1960709.jpg"></div><p> 7.分析儀通向pH電極的輸送延遲會超過混合停歇時間–這會使得檢查電極的便利性與檢查趨勢記錄的不便性相互抵消。8.采樣支架部件上優(yōu)先采用注入電極，這樣可以減少維護困難并縮短響應時間–但各種注入電極之間的效果各不相同。9.在不需要儲罐控制的場合中，使用大儲罐是個不錯的選擇；用作上游容積可減少反應物消耗，用作下游容積可減小控制誤差。如果只有一個儲罐而猶豫不決時，建議設置于下游。，但切勿安裝兩個電極。pH計|技術參考介紹...OMEGA的溫度測量和控制術語表無線藍牙技術,優(yōu)點,缺點總發(fā)射率表pH計|相關產(chǎn)品經(jīng)濟型pH或pH/mV計Litmustik?袖珍pH測量計1/8DIN，基于微處理器的pH計1?16DINpH值控制器工業(yè)pH值雙線4~20mA變送器浸沒式安裝平面pH/ORP電極查看更多pH計型號↓Viewthispageinanotherlanguageorregion↓MedidordepHpHmeterpHmeterpHmeterpHmeterpHmeterpH計pHmeterpHmeterpHmeterpHmeterpHmeterpHmeter集專業(yè)生產(chǎn)、研發(fā)、銷售、售后為一體的在線ph計，工業(yè)在線ph計廠家；從實驗室到工業(yè)現(xiàn)場都有相應PH計品牌和不同型號的工業(yè)酸度計產(chǎn)品覆蓋及其結(jié)構多樣的在線PH計電極、工業(yè)反應釜、管道傳感器安裝方式。pH計是一種常見的分析儀器，廣泛應用在農(nóng)業(yè)、環(huán)保和工業(yè)等領域。內(nèi)蒙古PH計維修價格</p><p style="text-indent:25px">玻璃電極的重復性誤差和參比電極的溶液接界電勢穩(wěn)定性都不優(yōu)于0.01pH.內(nèi)蒙古PH計</p><p> 造成長久性堵塞。（二）使用一、pH計使用1.將電極從電極保護液中取出沖洗干凈，用無塵紙吸干后置于待測溶液中（待測液一定要沒過電極泡），按開機鍵打開pH計，pH計自動進入測定界面，然后按“measuresave/p”鍵，等待讀數(shù)穩(wěn)定后即可讀數(shù)。，將電極沖洗干凈用無塵紙吸干，充分浸泡電極保護液中。電極保護液要及時更換，一星期更換一次。二、pH計的校準1.將pH值分別為，，。2.按開機鍵打開pH計，將電極沖洗干凈用無塵紙吸干后置于pH為。按“calibrate”鍵到，等待讀數(shù)穩(wěn)定且讀數(shù)前面的光標閃爍時，按“數(shù)字編輯”鍵，調(diào)節(jié)pH計讀數(shù)到標準液的pH值。接著按“calibrate”鍵進入。3.將電極沖洗干凈用無塵紙吸干后置于pH為，等待讀數(shù)穩(wěn)定且讀數(shù)前面的光標閃爍時，按“數(shù)字編輯”鍵，調(diào)節(jié)pH計讀數(shù)到標準液的pH值。然后按“calibrate”鍵進入。4.將電極沖洗干凈用無塵紙吸干后置于pH為，等待讀數(shù)穩(wěn)定且讀數(shù)前面的光標閃爍時，按“數(shù)字編輯”鍵，調(diào)節(jié)pH計讀數(shù)到標準液的pH值。5.按“measuresave/p”鍵保存校正結(jié)果，得出三點校準后的直線斜率。若直線斜率在100±3范圍內(nèi)，且測定另外兩個標準緩沖液的pH值在±，則此次校準有效。否則需重新校準。內(nèi)蒙古PH計</p><p style="text-indent:25px">上海博取環(huán)境技術有限公司創(chuàng)辦于2019-04-11，是一家生產(chǎn)型的公司。經(jīng)過多年不斷的歷練探索和創(chuàng)新發(fā)展，公司致力于為客戶提供安全、質(zhì)量有保障的質(zhì)量產(chǎn)品及服務，是一家私營有限責任公司企業(yè)。公司業(yè)務涵蓋[ "PH計", "COD分析儀", "氨氮分析儀", "重金屬分析儀" ]，價格合理，品質(zhì)有保證，深受廣大客戶的歡迎。博取環(huán)境將以真誠的服務、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來！</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/463248.html</p></div></div></div></div></div><div id="o3taxjv" class="page-right twoColRt"><div id="eol3fm7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dr7numc" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="mryk5pb" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個科目真誠推薦寧波助學商務信息咨詢供應" class="vcenter" 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