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1915漢普儀 純氧分析器 實驗室玻璃儀器，固體吸收器概述及用途：

漢普儀(yi)，1915漢普儀(yi)（純氧分(fen)析器），也叫漢氏氣體(ti)分(fen)析器：漢普儀(yi)是用(yong)硼硅(gui)玻璃(li)經爐工和燈工精心(xin)焊接而成。做工考究，制作精良(liang)，經濟實用(yong)。

使用時需要裝(zhuang)置在特制木架上。漢氏氣(qi)體分析器適應氣(qi)體分析的固體吸(xi)收(shou)，廣泛應用于制氧設備對氧氣(qi)和氮氣(qi)的純度(du)試驗。

1915純氧分析器造型及(ji)原理：

漢普儀造型及原理:漢普儀是用硼硅玻璃經爐工和燈工精心焊接而成。漢普儀的結構是由一個圓形吸收球與一個圓形球焊接而成，在吸收球的下端有一個開口，便于放入固體吸收器或填料，然后用膠塞塞住，其上端接一只毛細管，是接氣體量管用。

1915漢普儀 純氧分析器 實驗室玻璃儀器操(cao)作方法

使用(yong)(yong)(yong)(yong)(yong)前(qian)，將(jiang)(jiang)(jiang)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)劑(ji)從(cong)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)器(qi)中(zhong)(zhong)的(de)(de)(de)(de)下(xia)(xia)(xia)口放入(ru)(ru)(ru)(ru)(ru)，用(yong)(yong)(yong)(yong)(yong)膠封(feng)嚴，用(yong)(yong)(yong)(yong)(yong)膠管(guan)(guan)(guan)將(jiang)(jiang)(jiang)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)器(qi)的(de)(de)(de)(de)上(shang)端(duan)(duan)一(yi)(yi)支毛細管(guan)(guan)(guan)量(liang)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)連(lian)接扭(niu)轉(zhuan)活(huo)塞(sai)(sai)(sai)(sai)水(shui)(shui)準(zhun)(zhun)(zhun)(zhun)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)向上(shang)，量(liang)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)中(zhong)(zhong)的(de)(de)(de)(de)空氣(qi)(qi)(qi)(qi)(qi)排出(chu)，，扭(niu)轉(zhuan)活(huo)塞(sai)(sai)(sai)(sai)將(jiang)(jiang)(jiang)封(feng)液(ye)(ye)(ye)(ye)再抽回水(shui)(shui)準(zhun)(zhun)(zhun)(zhun)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)，扭(niu)轉(zhuan)活(huo)塞(sai)(sai)(sai)(sai)水(shui)(shui)準(zhun)(zhun)(zhun)(zhun)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)向，使被(bei)測(ce)(ce)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)由氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)進入(ru)(ru)(ru)(ru)(ru)內，在(zai)(zai)水(shui)(shui)準(zhun)(zhun)(zhun)(zhun)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)的(de)(de)(de)(de)升降(jiang)(jiang)作(zuo)(zuo)用(yong)(yong)(yong)(yong)(yong)下(xia)(xia)(xia)，進行(xing)(xing)次(ci)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)，直至(zhi)數(shu)(shu)(shu)(shu)時(shi)(shi)(shi)，認為(wei)已吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)完， ① 用(yong)(yong)(yong)(yong)(yong)樣(yang)(yang)(yang)氣(qi)(qi)(qi)(qi)(qi)對(dui)儀器(qi)進行(xing)(xing)置換三(san)(san)次(ci)，準(zhun)(zhun)(zhun)(zhun)確取(qu)樣(yang)(yang)(yang)氣(qi)(qi)(qi)(qi)(qi)100ml； ② 將(jiang)(jiang)(jiang)樣(yang)(yang)(yang)氣(qi)(qi)(qi)(qi)(qi)送入(ru)(ru)(ru)(ru)(ru)二氧(yang)(yang)化(hua)(hua)(hua)(hua)碳(tan)(tan)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)（2號(hao)(hao)(hao)(hao)和3號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)），吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)至(zhi)讀(du)數(shu)(shu)(shu)(shu)不變，記(ji)(ji)(ji)下(xia)(xia)(xia)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)讀(du)數(shu)(shu)(shu)(shu)為(wei)D1； ③ 余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)送入(ru)(ru)(ru)(ru)(ru)氧(yang)(yang)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)（4號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)），吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)至(zhi)讀(du)數(shu)(shu)(shu)(shu)不變，記(ji)(ji)(ji)下(xia)(xia)(xia)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)讀(du)數(shu)(shu)(shu)(shu)為(wei)D2； ④ 準(zhun)(zhun)(zhun)(zhun)確留(liu)取(qu)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)25ml，加入(ru)(ru)(ru)(ru)(ru)75ml空氣(qi)(qi)(qi)(qi)(qi)，送入(ru)(ru)(ru)(ru)(ru)爆(bao)炸瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)（1號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)）爆(bao)炸，記(ji)(ji)(ji)下(xia)(xia)(xia)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)讀(du)數(shu)(shu)(shu)(shu)為(wei)D3； ⑤ 余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)送入(ru)(ru)(ru)(ru)(ru)二氧(yang)(yang)化(hua)(hua)(hua)(hua)碳(tan)(tan)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)（2號(hao)(hao)(hao)(hao)和3號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)），吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)至(zhi)讀(du)數(shu)(shu)(shu)(shu)不變，記(ji)(ji)(ji)下(xia)(xia)(xia)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)讀(du)數(shu)(shu)(shu)(shu)為(wei)D4（二元法測(ce)(ce)定(ding)(ding)(ding)(ding)(ding)步驟結(jie)束）。 如果測(ce)(ce)定(ding)(ding)(ding)(ding)(ding)一(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)(hua)碳(tan)(tan)用(yong)(yong)(yong)(yong)(yong)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)法，則將(jiang)(jiang)(jiang)③中(zhong)(zhong)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)送入(ru)(ru)(ru)(ru)(ru)一(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)(hua)碳(tan)(tan)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)（5號(hao)(hao)(hao)(hao)和6號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)），先用(yong)(yong)(yong)(yong)(yong)一(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)(hua)碳(tan)(tan)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)（5號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)），至(zhi)讀(du)數(shu)(shu)(shu)(shu)不變，再用(yong)(yong)(yong)(yong)(yong)10%硫酸(suan)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)（6號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)）吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)氨性氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)至(zhi)讀(du)數(shu)(shu)(shu)(shu)不變，記(ji)(ji)(ji)下(xia)(xia)(xia)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)讀(du)數(shu)(shu)(shu)(shu)為(wei)D5； 準(zhun)(zhun)(zhun)(zhun)確留(liu)取(qu)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)25ml，加入(ru)(ru)(ru)(ru)(ru)75ml空氣(qi)(qi)(qi)(qi)(qi)，送入(ru)(ru)(ru)(ru)(ru)爆(bao)炸瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)（1號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)）爆(bao)炸，記(ji)(ji)(ji)下(xia)(xia)(xia)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)讀(du)數(shu)(shu)(shu)(shu)為(wei)D7； 余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)送入(ru)(ru)(ru)(ru)(ru)二氧(yang)(yang)化(hua)(hua)(hua)(hua)碳(tan)(tan)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)（2號(hao)(hao)(hao)(hao)和3號(hao)(hao)(hao)(hao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)），吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)至(zhi)讀(du)數(shu)(shu)(shu)(shu)不變，記(ji)(ji)(ji)下(xia)(xia)(xia)余(yu)(yu)(yu)(yu)(yu)氣(qi)(qi)(qi)(qi)(qi)讀(du)數(shu)(shu)(shu)(shu)為(wei)D8； 三(san)(san)元法應(ying)從(cong)測(ce)(ce)定(ding)(ding)(ding)(ding)(ding)步驟③，二元法則從(cong)測(ce)(ce)定(ding)(ding)(ding)(ding)(ding)步驟⑥中(zhong)(zhong)爆(bao)炸。 計(ji)(ji)算： ① 氫、一(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)(hua)碳(tan)(tan)和甲烷三(san)(san)元同(tong)時(shi)(shi)(shi)爆(bao)炸計(ji)(ji)算： CO2%=()% O2%=% CO%= % H2%=% N2%=100- CO2- O2 -CO -H2 ② 一(yi)(yi)氧(yang)(yang)化(hua)(hua)(hua)(hua)碳(tan)(tan)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)，氫與甲烷二元爆(bao)炸法計(ji)(ji) CO2%=（100-D1）% O2%=(D1-D2) % CO%=D2-D5% H2%=［100-D7-2(D7-D8)］×0.08×D5÷3 CH4%=(D7-D8) ×0.04×D5 N2%:100 -CO2 -O2 -CO -H2 -CH4 注(zhu)意事(shi)項： 吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)順(shun)序不能顛倒(dao)； 氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)引(yin)入(ru)(ru)(ru)(ru)(ru)量(liang)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)后(hou)(hou)(hou)(hou)，一(yi)(yi)般需要60秒后(hou)(hou)(hou)(hou)再進行(xing)(xing)體(ti)(ti)(ti)積(ji)的(de)(de)(de)(de)測(ce)(ce)量(liang)； 當(dang)溫(wen)(wen)(wen)度(du)變化(hua)(hua)(hua)(hua)1℃時(shi)(shi)(shi)，氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)體(ti)(ti)(ti)積(ji)變化(hua)(hua)(hua)(hua)1/273，分(fen)(fen)析(xi)(xi)誤(wu)差(cha)可(ke)增大至(zhi)0.36 %左右，所以(yi)(yi)(yi)儀器(qi)要避免(mian)(mian)日光照射，量(liang)氣(qi)(qi)(qi)(qi)(qi)管(guan)(guan)(guan)要置在(zai)(zai)水(shui)(shui)套管(guan)(guan)(guan)中(zhong)(zhong)，水(shui)(shui)套應(ying)充滿水(shui)(shui)； 同(tong)一(yi)(yi)套儀器(qi)*好只用(yong)(yong)(yong)(yong)(yong)于分(fen)(fen)析(xi)(xi)同(tong)樣(yang)(yang)(yang)組成(cheng)的(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)，否則需換新的(de)(de)(de)(de)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)液(ye)(ye)(ye)(ye)； 組裝儀器(qi)時(shi)(shi)(shi)，兩個(ge)管(guan)(guan)(guan)端(duan)(duan)用(yong)(yong)(yong)(yong)(yong)乳膠管(guan)(guan)(guan)互相對(dui)接緊，不要產生過多的(de)(de)(de)(de)有(you)害容積(ji)，因為(wei)這些有(you)害容積(ji)中(zhong)(zhong)的(de)(de)(de)(de)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)會與試(shi)樣(yang)(yang)(yang)混合而改變試(shi)樣(yang)(yang)(yang)組成(cheng)； 室溫(wen)(wen)(wen)應(ying)不低于15℃，以(yi)(yi)(yi)防焦鉀吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)效果不好； 爆(bao)炸瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)外(wai)部應(ying)用(yong)(yong)(yong)(yong)(yong)銅絲網包(bao)扎，爆(bao)炸時(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)手指按(an)(an)(an)住考克，以(yi)(yi)(yi)免(mian)(mian)氣(qi)(qi)(qi)(qi)(qi)體(ti)(ti)(ti)外(wai)泄，造成(cheng)分(fen)(fen)析(xi)(xi)誤(wu)差(cha)； 各磨(mo)口及旋塞(sai)(sai)(sai)(sai)應(ying)經常擦(ca)洗(xi)，并涂潤滑(hua)脂，以(yi)(yi)(yi)防漏氣(qi)(qi)(qi)(qi)(qi)與粘結(jie)； 操作(zuo)(zuo)時(shi)(shi)(shi)要嚴防吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)液(ye)(ye)(ye)(ye)沖(chong)(chong)(chong)入(ru)(ru)(ru)(ru)(ru)梳型管(guan)(guan)(guan)內，否則應(ying)及時(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)水(shui)(shui)沖(chong)(chong)(chong)洗(xi)干(gan)凈(jing)； 當(dang)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)液(ye)(ye)(ye)(ye)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)收(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)(shou)效率下(xia)(xia)(xia)降(jiang)(jiang)時(shi)(shi)(shi)應(ying)及時(shi)(shi)(shi)更換； 爆(bao)炸瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)鉑金絲久(jiu)用(yong)(yong)(yong)(yong)(yong)后(hou)(hou)(hou)(hou)沾有(you)油(you)污(wu)時(shi)(shi)(shi)，可(ke)采用(yong)(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)解(jie)法或(huo)純氧(yang)(yang)燃燒法清除(chu)。 PH的(de)(de)(de)(de)測(ce)(ce)定(ding)(ding)(ding)(ding)(ding) 一(yi)(yi)、原理 儀器(qi)采用(yong)(yong)(yong)(yong)(yong)復(fu)合電(dian)(dian)(dian)(dian)(dian)極(ji)，以(yi)(yi)(yi)PH或(huo)PH的(de)(de)(de)(de)標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)緩(huan)沖(chong)(chong)(chong)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)后(hou)(hou)(hou)(hou)測(ce)(ce)定(ding)(ding)(ding)(ding)(ding)水(shui)(shui)樣(yang)(yang)(yang)的(de)(de)(de)(de)PH值(zhi)(zhi)。 二、化(hua)(hua)(hua)(hua)學試(shi)劑(ji) 1、PH=4.00標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye) 2、PH=6.86標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye) 3、PH=9.18標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye) 三(san)(san)、儀器(qi) 1、酸(suan)度(du)測(ce)(ce)定(ding)(ding)(ding)(ding)(ding)儀 2、塑料(liao)瓶(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)(ping)或(huo)玻璃杯(bei)(bei) 3、濾(lv)(lv)紙 四、測(ce)(ce)定(ding)(ding)(ding)(ding)(ding)步驟 1、儀器(qi)校(xiao)正：儀器(qi)開啟半小時(shi)(shi)(shi)后(hou)(hou)(hou)(hou)，按(an)(an)(an)儀器(qi)說明書的(de)(de)(de)(de)規(gui)定(ding)(ding)(ding)(ding)(ding)，進行(xing)(xing)調(diao)零、溫(wen)(wen)(wen)度(du)補償以(yi)(yi)(yi)及滿刻(ke)度(du)校(xiao)正等步驟。 2、PH定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)：可(ke)根(gen)據(ju)具體(ti)(ti)(ti)情況采取(qu)單點(dian)(dian)定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)或(huo)兩點(dian)(dian)定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)。一(yi)(yi)般情況下(xia)(xia)(xia)單點(dian)(dian)即可(ke)，選用(yong)(yong)(yong)(yong)(yong)一(yi)(yi)種(zhong)PH值(zhi)(zhi)與被(bei)測(ce)(ce)水(shui)(shui)樣(yang)(yang)(yang)相接近的(de)(de)(de)(de)緩(huan)沖(chong)(chong)(chong)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)作(zuo)(zuo)為(wei)定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)液(ye)(ye)(ye)(ye)（用(yong)(yong)(yong)(yong)(yong)PH=9.18的(de)(de)(de)(de)標(biao)(biao)準(zhun)(zhun)(zhun)(zhun)緩(huan)沖(chong)(chong)(chong)液(ye)(ye)(ye)(ye)）。定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)前(qian)，用(yong)(yong)(yong)(yong)(yong)蒸餾(liu)水(shui)(shui)沖(chong)(chong)(chong)洗(xi)電(dian)(dian)(dian)(dian)(dian)極(ji)和塑料(liao)杯(bei)(bei)3次(ci)以(yi)(yi)(yi)上(shang)，然后(hou)(hou)(hou)(hou)用(yong)(yong)(yong)(yong)(yong)干(gan)凈(jing)濾(lv)(lv)紙將(jiang)(jiang)(jiang)電(dian)(dian)(dian)(dian)(dian)極(ji)底部水(shui)(shui)滴(di)輕(qing)輕(qing)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)干(gan)（勿用(yong)(yong)(yong)(yong)(yong)濾(lv)(lv)紙擦(ca)電(dian)(dian)(dian)(dian)(dian)極(ji)，以(yi)(yi)(yi)免(mian)(mian)帶靜(jing)電(dian)(dian)(dian)(dian)(dian)，導致讀(du)數(shu)(shu)(shu)(shu)不穩(wen)定(ding)(ding)(ding)(ding)(ding)）。再用(yong)(yong)(yong)(yong)(yong)定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)緩(huan)沖(chong)(chong)(chong)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)將(jiang)(jiang)(jiang)電(dian)(dian)(dian)(dian)(dian)極(ji)沖(chong)(chong)(chong)洗(xi)兩次(ci)，后(hou)(hou)(hou)(hou)將(jiang)(jiang)(jiang)定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)緩(huan)沖(chong)(chong)(chong)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)倒(dao)入(ru)(ru)(ru)(ru)(ru)塑料(liao)杯(bei)(bei)或(huo)玻璃燒杯(bei)(bei)中(zhong)(zhong)，插入(ru)(ru)(ru)(ru)(ru)電(dian)(dian)(dian)(dian)(dian)極(ji)，輕(qing)輕(qing)搖動塑料(liao)杯(bei)(bei)幾秒鐘。調(diao)整儀器(qi)的(de)(de)(de)(de)零點(dian)(dian)、溫(wen)(wen)(wen)度(du)補償以(yi)(yi)(yi)及滿刻(ke)度(du)校(xiao)正。后(hou)(hou)(hou)(hou)根(gen)據(ju)所用(yong)(yong)(yong)(yong)(yong)定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)緩(huan)沖(chong)(chong)(chong)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)的(de)(de)(de)(de)PH值(zhi)(zhi)將(jiang)(jiang)(jiang)PH定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)。重復(fu)定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)1-2次(ci)，直至(zhi)穩(wen)定(ding)(ding)(ding)(ding)(ding)為(wei)止，定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)完畢后(hou)(hou)(hou)(hou)，保持“定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)”不變。定(ding)(ding)(ding)(ding)(ding)位(wei)(wei)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)可(ke)保留(liu)下(xia)(xia)(xia)次(ci)再用(yong)(yong)(yong)(yong)(yong)。但如有(you)污(wu)染后(hou)(hou)(hou)(hou)使用(yong)(yong)(yong)(yong)(yong)數(shu)(shu)(shu)(shu)次(ci)后(hou)(hou)(hou)(hou)，應(ying)當(dang)根(gen)據(ju)需要隨時(shi)(shi)(shi)更換新鮮緩(huan)沖(chong)(chong)(chong)液(ye)(ye)(ye)(ye)。 3、水(shui)(shui)樣(yang)(yang)(yang)的(de)(de)(de)(de)測(ce)(ce)定(ding)(ding)(ding)(ding)(ding)：將(jiang)(jiang)(jiang)塑料(liao)杯(bei)(bei)及電(dian)(dian)(dian)(dian)(dian)極(ji)用(yong)(yong)(yong)(yong)(yong)蒸餾(liu)水(shui)(shui)洗(xi)凈(jing)后(hou)(hou)(hou)(hou)，再用(yong)(yong)(yong)(yong)(yong)被(bei)測(ce)(ce)水(shui)(shui)樣(yang)(yang)(yang) 沖(chong)(chong)(chong)洗(xi)2次(ci)以(yi)(yi)(yi)上(shang)，后(hou)(hou)(hou)(hou)一(yi)(yi)次(ci)沖(chong)(chong)(chong)洗(xi)完畢后(hou)(hou)(hou)(hou)應(ying)用(yong)(yong)(yong)(yong)(yong)干(gan)凈(jing)的(de)(de)(de)(de)濾(lv)(lv)紙輕(qing)輕(qing)將(jiang)(jiang)(jiang)電(dian)(dian)(dian)(dian)(dian)極(ji)底部殘留(liu)的(de)(de)(de)(de)水(shui)(shui)滴(di)吸(xi)(xi)(xi)(xi)(xi)(xi)(xi)(xi)干(gan)，在(zai)(zai)塑料(liao)杯(bei)(bei)或(huo)玻璃燒杯(bei)(bei)內加入(ru)(ru)(ru)(ru)(ru)約50ml水(shui)(shui)樣(yang)(yang)(yang)，用(yong)(yong)(yong)(yong)(yong)溫(wen)(wen)(wen)度(du)計(ji)(ji)測(ce)(ce)出(chu)被(bei)測(ce)(ce)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)的(de)(de)(de)(de)溫(wen)(wen)(wen)度(du)值(zhi)(zhi)，在(zai)(zai)按(an)(an)(an)“溫(wen)(wen)(wen)度(du)”鍵，使儀器(qi)顯示為(wei)被(bei)測(ce)(ce)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)溫(wen)(wen)(wen)度(du)值(zhi)(zhi)，按(an)(an)(an)“確認”鍵。然后(hou)(hou)(hou)(hou)將(jiang)(jiang)(jiang)電(dian)(dian)(dian)(dian)(dian)極(ji)浸入(ru)(ru)(ru)(ru)(ru)被(bei)測(ce)(ce)溶(rong)(rong)(rong)(rong)液(ye)(ye)(ye)(ye)，按(an)(an)(an)下(xia)(xia)(xia)讀(du)數(shu)(shu)(shu)(shu)開關，記(ji)(ji)(ji)下(xia)(xia)(xia)讀(du)數(shu)(shu)(shu)(shu)。即為(wei)水(shui)(shui)樣(yang)(yang)(yang)的(de)(de)(de)(de)PH值(zhi)(zhi)。 【注(zhu)釋】 每個(ge)白班需校(xiao)正一(yi)(yi)次(ci)