在(zai)實(shi)(shi)驗(yan)(yan)室(shi)的(de)(de)(de)各種測(ce)試試驗(yan)(yan)中，總是需(xu)要對樣品或(huo)者化學試劑的(de)(de)(de)溶液酸(suan)堿度進行pH測(ce)量，所以pH計在(zai)化學實(shi)(shi)驗(yan)(yan)室(shi)中不(bu)可或(huo)缺(que)，而(er)其中的(de)(de)(de)pH電(dian)極作(zuo)為(wei)一個直(zhi)接(jie)與溶液相接(jie)觸的(de)(de)(de)的(de)(de)(de)儀器，起(qi)著至(zhi)關重要的(de)(de)(de)作(zuo)用。pH電(dian)極作(zuo)為(wei)pH計的(de)(de)(de)重要組件，其性能(neng)(neng)好壞、恰當的(de)(de)(de)選擇(ze)都直(zhi)接(jie)影(ying)響(xiang)pH值的(de)(de)(de)測(ce)量結果，如測(ce)試誤(wu)差增大，讀數不(bu)穩等(deng)，導(dao)致pH計無(wu)法正(zheng)常(chang)使(shi)用。許多場合經(jing)常(chang)遇到在(zai)標(biao)準溶液中pH計能(neng)(neng)夠正(zheng)常(chang)工作(zuo)，而(er)在(zai)實(shi)(shi)際(ji)樣品中無(wu)法取(qu)得準確穩定的(de)(de)(de)結果的(de)(de)(de)問題，多數是由pH電(dian)極的(de)(de)(de)選擇(ze)不(bu)合適(shi)導(dao)致.測(ce)量pH值必(bi)須一起(qi)使(shi)用這兩(liang)種不(bu)同(tong)電(dian)位的(de)(de)(de)電(dian)極。耐氫(qing)氟酸(suan)pH電(dian)極說明書

Q：pH計表(biao)頭屏幕上不顯示(shi)或出現ERR的原因是？

A：檢查電極是否損(sun)壞，或(huo)檢查是否超出(chu)測量范圍；

Q：pH計表頭數值跳動，是為什么呢？

A：要判斷一(yi)下電(dian)極(ji)使用時間是否過(guo)長(chang)，如果電(dian)極(ji)上面附著了一(yi)些有(you)機物,同樣會導致反應(ying)不靈敏，需要及時清洗；Q：pH計電(dian)極(ji)放入任(ren)何溶液中(zhong)pH值(zhi)不變(bian)，又是什么原因呢(ni)？

A：檢查電極(ji)球泡是否(fou)(fou)完(wan)好，如果(guo)已(yi)經破裂，那么就需更換(huan)電極(ji)了。還(huan)需要(yao)檢查電極(ji)與儀(yi)器接線(xian)處(chu)是否(fou)(fou)脫落，電極(ji)電纜也(ye)有可能內部(bu)斷裂，這種情況只(zhi)能更換(huan)或送回修(xiu)理了。

Q：同一待測(ce)樣(yang)品(pin)，同時在兩臺(tai)pH計(ji)上(shang)測(ce)量(liang)，讀數不一致，能解釋嗎(ma)？

A：這(zhe)要考慮到(dao)設備的(de)誤差(cha)問題，無論多精密的(de)儀器(qi)都會存在(zai)誤差(cha)。建(jian)議用同一緩沖液在(zai)同一時間里(li)對pH計進行校正，然(ran)后再(zai)同時測定(ding)。山(shan)東高壓pH電極測量時pH敏感玻璃膜和液接點都需要完全浸入水中才(cai)能正常工作(zuo)。

玻璃球泡(pao)的(de)選(xuan)擇(ze)(ze)玻璃球泡(pao)（即pH敏感膜）的(de)選(xuan)擇(ze)(ze)主要依據被測量(liang)對(dui)象的(de)性質(zhi)，針(zhen)對(dui)不同(tong)的(de)樣品，一(yi)般的(de)選(xuan)擇(ze)(ze)規律如下：

1)一(yi)般樣品(pin)：選擇定(ding)制的(de)(de)低阻敏感膜(mo)。  這種敏感的(de)(de)薄膜(mo)具有較低的(de)(de)內部電阻，通常約為50MΩ，并且響應時間(jian)更快。再加上一(yi)定(ding)的(de)(de)膜(mo)厚和強(qiang)度，在日常使(shi)用中不易損壞。

2)超純水，有機溶(rong)劑(ji)和其他特(te)殊樣品：選(xuan)擇較低(di)(di)內阻敏感膜(mo)。  此(ci)類樣品的電阻非常低(di)(di)，而具有較低(di)(di)內電阻的感光膜(mo)可以使響應更(geng)快。

3)含有氫氟(fu)酸HF和其他物質的特殊(shu)樣品(pin)(pin)：使(shi)(shi)用(yong)抗(kang)氫氟(fu)酸玻璃(li)(li)(li)敏(min)(min)感膜(mo)(mo)。這(zhe)些(xie)樣品(pin)(pin)對(dui)玻璃(li)(li)(li)有腐蝕作(zuo)用(yong)，使(shi)(shi)用(yong)常規pH電(dian)極(ji)(ji)測(ce)量(liang)時，讀數會(hui)繼續漂(piao)移，無(wu)法獲得穩定(ding)的測(ce)量(liang)電(dian)位，并且會(hui)損壞敏(min)(min)感膜(mo)(mo)。需要(yao)理解的是，即使(shi)(shi)選擇了抗(kang)氟(fu)玻璃(li)(li)(li)，其對(dui)酸的耐腐蝕性也受到限(xian)制(zhi)。抗(kang)氟(fu)玻璃(li)(li)(li)只適用(yong)于(yu)酸含量(liang)小于(yu)0.1％的樣品(pin)(pin)。對(dui)于(yu)高于(yu)1％的樣品(pin)(pin)，必須使(shi)(shi)用(yong)基于(yu)PVC膜(mo)(mo)的pH電(dian)極(ji)(ji)。這(zhe)種(zhong)類型的電(dian)極(ji)(ji)仍可(ke)以正常用(yong)于(yu)濃度(du)超過2mol/L的酸溶液中。

E+H pH電(dian)(dian)極應(ying)(ying)用(yong)(yong)領(ling)域(yu)。Memosens CPL51E 堅固(gu)耐用(yong)(yong)，采用(yong)(yong)塑料電(dian)(dian)極桿和(he)非接(jie)(jie)觸(chu)電(dian)(dian)感式 Memosens 電(dian)(dian)纜連(lian)接(jie)(jie)。E+H pH探(tan)(tan)頭 Memosens CPL51E適(shi)合飲用(yong)(yong)水(shui)、廢水(shui)和(he)工藝水(shui)應(ying)(ying)用(yong)(yong)：離(li)線(xian)pH測(ce)量(liang)、在線(xian)檢查(cha)測(ce)量(liang)回路、分析(xi)水(shui)樣（現場(chang)或在實驗室中）。E+H pH探(tan)(tan)頭感應(ying)(ying)式 Memosens 連(lian)接(jie)(jie)不受水(shui)汽和(he)腐蝕的(de)影(ying)響。內(nei)置溫度(du)傳感器(qi)，自動(dong)進行溫度(du)補償。支(zhi)持質量(liang)管理的(de)要求，具備防篡改的(de)存儲信息，如序列(lie)號(hao)或校準(zhun)歷史。響應(ying)(ying)迅(xun)速，即(ji)使(shi)在離(li)子活動(dong)性(xing)差(cha)的(de)冷水(shui)中也能快速完(wan)成測(ce)量(liang)。在液(ye)體(ti)分析(xi)技術領(ling)域(yu)內(nei)，Memosens 技術具有里程碑(bei)的(de)跨時代意義(yi)。E+H pH探(tan)(tan)頭將(jiang)測(ce)量(liang)值(zhi)轉換成數字信號(hao)，采用(yong)(yong)非接(jie)(jie)觸(chu)的(de)感應(ying)(ying)信號(hao)傳輸方(fang)式，將(jiang)數據傳輸至變送器(qi)，完(wan)全避免了潮濕(shi)環(huan)境對測(ce)量(liang)的(de)影(ying)響。沖(chong)洗電(dian)(dian)極，不要直接(jie)(jie)擦拭玻璃泡。測(ce)量(liang)后用(yong)(yong)純凈水(shui)沖(chong)洗干凈即(ji)可。

對于(yu)參(can)比pH電(dian)極，常(chang)見(jian)的是Ag/AgCl參(can)比系統(tong)，提到參(can)比系統(tong)的時候需要注意以下兩點(dian)。

1）為了(le)得(de)到系統的(de)低(di)電(dian)阻(zu)，參比(bi)(bi)電(dian)解(jie)液(ye)(ye)(ye)必須保(bao)持高離子(zi)(zi)濃度，推薦的(de)是3mol/L的(de)氯(lv)(lv)化(hua)(hua)鉀溶(rong)液(ye)(ye)(ye)，為了(le)更(geng)好地保(bao)護Ag/AgCl參比(bi)(bi)系統引線上的(de)AgCl，往往會(hui)采(cai)用含飽(bao)和(he)AgCl的(de)3mol/L氯(lv)(lv)化(hua)(hua)鉀溶(rong)液(ye)(ye)(ye)，微量的(de)銀離子(zi)(zi)會(hui)和(he)樣(yang)品發生反應(ying)，產生不溶(rong)性沉淀，堵塞液(ye)(ye)(ye)絡(luo)部，這就需要(yao)去對電(dian)極(ji)進行清理和(he)維護；當然，集成(cheng)了(le)銀離子(zi)(zi)捕捉阱的(de)參比(bi)(bi)電(dian)極(ji)則可以直接用3mol/L的(de)氯(lv)(lv)化(hua)(hua)鉀溶(rong)液(ye)(ye)(ye)作為參比(bi)(bi)電(dian)解(jie)液(ye)(ye)(ye)。非水溶(rong)液(ye)(ye)(ye)采(cai)用的(de)參比(bi)(bi)電(dian)解(jie)液(ye)(ye)(ye)為特殊(shu)的(de)溶(rong)液(ye)(ye)(ye)更(geng)合適。

2）由于(yu)測量(liang)過程中(zhong)參比(bi)(bi)電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)(ye)需流入(ru)樣(yang)品(pin)溶(rong)液(ye)(ye)(ye)，我們必須考慮參比(bi)(bi)電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)(ye)與樣(yang)品(pin)溶(rong)液(ye)(ye)(ye)發生(sheng)化(hua)學反(fan)應(ying)的可能(neng)性，避免化(hua)學反(fan)應(ying)影(ying)響電(dian)(dian)(dian)(dian)極(ji)狀態和(he)測量(liang)結果(guo)。但是(shi)隨著(zhu)技(ji)術的發展，目前(qian)復(fu)合(he)電(dian)(dian)(dian)(dian)極(ji)的使(shi)用(yong)(yong)(yong)已經非常普遍，即復(fu)合(he)電(dian)(dian)(dian)(dian)極(ji)，復(fu)合(he)電(dian)(dian)(dian)(dian)極(ji)中(zhong)pH敏感(gan)玻璃電(dian)(dian)(dian)(dian)極(ji)位于(yu)中(zhong)間，外部被充滿了參比(bi)(bi)電(dian)(dian)(dian)(dian)解(jie)液(ye)(ye)(ye)的參比(bi)(bi)電(dian)(dian)(dian)(dian)極(ji)所包圍。只有(you)當pH電(dian)(dian)(dian)(dian)極(ji)和(he)參比(bi)(bi)電(dian)(dian)(dian)(dian)極(ji)兩者的使(shi)用(yong)(yong)(yong)使(shi)用(yong)(yong)(yong)壽(shou)命相差(cha)很大，才推薦使(shi)用(yong)(yong)(yong)單獨的電(dian)(dian)(dian)(dian)極(ji)。由于(yu)pH的測量(liang)會受(shou)到溫度(du)的影(ying)響，所以(yi)可以(yi)在(zai)復(fu)合(he)電(dian)(dian)(dian)(dian)極(ji)中(zhong)再(zai)加(jia)入(ru)溫度(du)探頭，以(yi)實現簡單的溫度(du)補償，這種(zhong)電(dian)(dian)(dian)(dian)極(ji)被稱為3合(he)1 pH電(dian)(dian)(dian)(dian)極(ji)。將(jiang)干燥(zao)的電(dian)(dian)(dian)(dian)極(ji)浸泡在(zai)pH保存溶(rong)液(ye)(ye)(ye)中(zhong)至少1-2小時后再(zai)使(shi)用(yong)(yong)(yong)，建議盡量(liang)浸泡一晚(wan)上后再(zai)使(shi)用(yong)(yong)(yong)。山東高(gao)壓pH電(dian)(dian)(dian)(dian)極(ji)

常規用途的(de)電(dian)極(ji)應用范圍，但并不是適用于所有樣品。耐(nai)氫氟酸pH電(dian)極(ji)說明(ming)書

創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)優(you)先，服(fu)務提(ti)(ti)升(sheng)。加快(kuai)技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)步伐，突破關(guan)鍵(jian)重(zhong)(zhong)點(dian)(dian)技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)和(he)共(gong)(gong)性技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)，縮小與國(guo)際水平的(de)(de)(de)差距(ju)，提(ti)(ti)升(sheng)技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)裝備(bei)和(he)PH計(ji)，ORP電(dian)極(ji)，溶解(jie)氧電(dian)極(ji)，電(dian)導率儀(yi)的(de)(de)(de)供給能力(li)(li)。推(tui)行合(he)(he)同能源管(guan)理(li)、特許(xu)經營、綜(zong)合(he)(he)環(huan)(huan)境服(fu)務等(deng)市場化(hua)(hua)新(xin)(xin)型節(jie)能環(huan)(huan)保(bao)服(fu)務業(ye)態。一是(shi)創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)能力(li)(li)不強(qiang)(qiang)。以(yi)貿易型企(qi)(qi)業(ye)為主體(ti)的(de)(de)(de)環(huan)(huan)保(bao)技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)體(ti)系不完善，產學研結合(he)(he)不夠緊(jin)密(mi)，技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)開發不足。一些重(zhong)(zhong)點(dian)(dian)技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)尚未完全(quan)掌握，部分關(guan)鍵(jian)設(she)備(bei)仍需要(yao)進口，一些已能自(zi)主生(sheng)(sheng)產的(de)(de)(de)節(jie)能環(huan)(huan)保(bao)設(she)備(bei)性能和(he)效率有(you)(you)待提(ti)(ti)高。隨著社會經濟的(de)(de)(de)發展(zhan)(zhan)，人(ren)們的(de)(de)(de)生(sheng)(sheng)活(huo)水平不斷提(ti)(ti)高，人(ren)們對環(huan)(huan)保(bao)也有(you)(you)了更高的(de)(de)(de)要(yao)求。PH計(ji)，ORP電(dian)極(ji)，溶解(jie)氧電(dian)極(ji)，電(dian)導率儀(yi)行業(ye)目前(qian)正處(chu)于戰略性新(xin)(xin)興產業(ye)地(di)位，是(shi)我國(guo)重(zhong)(zhong)點(dian)(dian)發展(zhan)(zhan)的(de)(de)(de)對象之一，我國(guo)對PH計(ji)，ORP電(dian)極(ji)，溶解(jie)氧電(dian)極(ji)，電(dian)導率儀(yi)的(de)(de)(de)重(zhong)(zhong)視(shi)程度也越來越高。要(yao)強(qiang)(qiang)化(hua)(hua)環(huan)(huan)保(bao)企(qi)(qi)業(ye)技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)主體(ti)地(di)位。貿易型企(qi)(qi)業(ye)的(de)(de)(de)發展(zhan)(zhan)是(shi)產業(ye)發展(zhan)(zhan)的(de)(de)(de)重(zhong)(zhong)要(yao)因素，而企(qi)(qi)業(ye)發展(zhan)(zhan)關(guan)鍵(jian)在(zai)創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)。特別是(shi)在(zai)當前(qian)資源環(huan)(huan)境約束(shu)趨緊(jin)的(de)(de)(de)情況下。沒有(you)(you)創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)寸步難行。因此(ci)，要(yao)加快(kuai)環(huan)(huan)保(bao)企(qi)(qi)業(ye)由要(yao)素驅動向創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)驅動轉變，推(tui)動環(huan)(huan)保(bao)企(qi)(qi)業(ye)研發中心建設(she)，鼓勵環(huan)(huan)保(bao)企(qi)(qi)業(ye)與科研院所和(he)高等(deng)學校共(gong)(gong)建研發機構，促(cu)進環(huan)(huan)保(bao)企(qi)(qi)業(ye)技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)集約化(hua)(hua)，支持骨(gu)干(gan)企(qi)(qi)業(ye)、科技(ji)(ji)(ji)(ji)型企(qi)(qi)業(ye)、高新(xin)(xin)技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)企(qi)(qi)業(ye)建設(she)我國(guo)和(he)省級(ji)工程技(ji)(ji)(ji)(ji)術(shu)(shu)(shu)研究中心、重(zhong)(zhong)點(dian)(dian)實驗室等(deng)科技(ji)(ji)(ji)(ji)創(chuang)(chuang)(chuang)(chuang)新(xin)(xin)平臺。耐(nai)氫氟酸pH電(dian)極(ji)說明書

上海(hai)歸真儀(yi)器(qi)設(she)備有(you)(you)限公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)辦公(gong)(gong)(gong)(gong)(gong)(gong)設(she)施齊全，辦公(gong)(gong)(gong)(gong)(gong)(gong)環境(jing)優越，為(wei)員工(gong)(gong)(gong)(gong)打(da)造(zao)(zao)良好的(de)(de)(de)(de)辦公(gong)(gong)(gong)(gong)(gong)(gong)環境(jing)。致(zhi)力(li)(li)于(yu)創造(zao)(zao)的(de)(de)(de)(de)產(chan)品(pin)(pin)與(yu)服務，以誠信、敬業(ye)(ye)(ye)、進取為(wei)宗旨，以建EUTECH,ORION,Thermo,ACCUMET,E+H,SWAN,Orion,OAKTON,Cole-Parmer,ROSEMOUNT,YSI,ABB,Honeywell,HAMILTON,Palintest,WTW,HACH,=GF產(chan)品(pin)(pin)為(wei)目標(biao)(biao)，努力(li)(li)打(da)造(zao)(zao)成為(wei)同行(xing)業(ye)(ye)(ye)中具有(you)(you)影響力(li)(li)的(de)(de)(de)(de)企業(ye)(ye)(ye)。我公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)擁有(you)(you)強大的(de)(de)(de)(de)技術(shu)實力(li)(li)，多年來一直專注(zhu)于(yu)公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)產(chan)品(pin)(pin)廣泛應用于(yu)：農業(ye)(ye)(ye)和(he)(he)花(hua)卉栽培(土壤分析)、水(shui)(shui)族館和(he)(he)水(shui)(shui)產(chan)養殖(zhi)、鍋爐補給水(shui)(shui)、釀酒廠(chang)、鹽水(shui)(shui)、水(shui)(shui)泥和(he)(he)混(hun)凝土產(chan)品(pin)(pin)、化工(gong)(gong)(gong)(gong)行(xing)業(ye)(ye)(ye)、冷卻水(shui)(shui)、飲用水(shui)(shui)、電(dian)(dian)鍍工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、食品(pin)(pin)飲料行(xing)業(ye)(ye)(ye)、工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)廢水(shui)(shui)處理(li)行(xing)業(ye)(ye)(ye)、皮革化工(gong)(gong)(gong)(gong)、金屬加工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、乳品(pin)(pin)加工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、肉制(zhi)品(pin)(pin)、罐裝食品(pin)(pin)、碳(tan)酸飲料、果汁、薯片類食品(pin)(pin)、制(zhi)藥、日用品(pin)(pin)、市政污水(shui)(shui)、造(zao)(zao)紙工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)、照相業(ye)(ye)(ye)、游泳池和(he)(he)SPA、地(di)表水(shui)(shui)和(he)(he)海(hai)水(shui)(shui)、紡織工(gong)(gong)(gong)(gong)業(ye)(ye)(ye)等行(xing)業(ye)(ye)(ye)。公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)擁有(you)(you)經驗豐富的(de)(de)(de)(de)技術(shu)團(tuan)隊,高效的(de)(de)(de)(de)為(wei)客(ke)(ke)戶提供專業(ye)(ye)(ye)的(de)(de)(de)(de)技術(shu)服務。公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)一直秉(bing)承(cheng)”誠信,專業(ye)(ye)(ye),共(gong)贏”的(de)(de)(de)(de)理(li)念,客(ke)(ke)戶滿意是我們永(yong)恒的(de)(de)(de)(de)主(zhu)題。的(de)(de)(de)(de)發展和(he)(he)創新，打(da)造(zao)(zao)高指標(biao)(biao)產(chan)品(pin)(pin)和(he)(he)服務。誠實、守信是對企業(ye)(ye)(ye)的(de)(de)(de)(de)經營要求(qiu)，也(ye)是我們做人的(de)(de)(de)(de)基本準則。公(gong)(gong)(gong)(gong)(gong)(gong)司(si)(si)致(zhi)力(li)(li)于(yu)打(da)造(zao)(zao)的(de)(de)(de)(de)PH計，ORP電(dian)(dian)極，溶解氧電(dian)(dian)極，電(dian)(dian)導率儀(yi)。

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