除塵機加熱器/JGQ2-380/3
除(chu)塵機(ji)加(jia)熱(re)器/JGQ2-380/3TCL電熱(re)水速熱(re)即熱(re)式加(jia)熱(re)器廠(chang)家(jia)定(ding)制專為各類監(jian)測(ce)(ce)和實(shi)驗室人員用于(yu)測(ce)(ce)定(ding)各種(zhong)水樣(yang)生(sheng)化需氧量的儀器
| 品牌 | 萬安電熱電器 | 執行質量標準 | 其他 |
|---|---|---|---|
| 產地 | 國產 | 加工定制 | 是 |
除塵機加熱器/JGQ2-380/3TCL電熱水速熱即熱式加熱器廠家定制
技(ji)術指標
測量范圍： 2—50 mg/L（Z大可測 2—5000mg/L）
重(zhong)復(fu)性： ≤ 5%
一次測樣時間： 8分(fen)鐘
進樣(yang)(yang)方式： 恒流連續進樣(yang)(yang)
緩沖溶液(ye)消(xiao)耗： 5ml/min
所需(xu)樣品體(ti)積： 每測一次需(xu)50ml
環境溫度： （5—40）℃
相對濕(shi)度： ≤90%
功(gong)率： 100W
電源： AC220V 50Hz
外(wai)部尺寸： （560× 360× 210） mm3
重量(liang)： 16kg
除塵機加熱器/JGQ2-380/3TCL電熱水速熱即熱式加熱器廠家定制
是專(zhuan)為各(ge)類(lei)監測(ce)和實驗(yan)室人員用于(yu)測(ce)定(ding)各(ge)種(zhong)水(shui)樣生化需氧量的儀(yi)器，生物化學(xue)需氧量(Biochemical Oxygen Demand, BOD)作為上的水(shui)質(zhi)有(you)機污(wu)染指標和檢測(ce)參數(shu)之一。本(ben)產品具有(you)測(ce)量迅速、準確等優點，適用于(yu)測(ce)定(ding)地表水(shui)、生活污(wu)水(shui)、工業廢水(shui)中(zhong)的 BOD。
執行(xing)標準
HJ/T 86-2002《水質 生(sheng)化需氧量（BOD）的測(ce)定 微(wei)生(sheng)物傳感器(qi)快速測(ce)定法》
測量原(yuan)理
儀器采用微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)電(dian)極(ji)法，將微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)膜(mo)緊貼(tie)在(zai)極(ji)譜式(shi)(shi)溶(rong)(rong)(rong)(rong)解(jie)(jie)氧(yang)(yang)電(dian)極(ji)的(de)(de)透氧(yang)(yang)膜(mo)表面，即(ji)構成微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)電(dian)極(ji)。儀器采用流通(tong)(tong)測量(liang)(liang)方式(shi)(shi)，即(ji)樣品以流動方式(shi)(shi)通(tong)(tong)過(guo)(guo)微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)電(dian)極(ji)微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)膜(mo)里含(han)有(you)(you)(you)大(da)量(liang)(liang)好氧(yang)(yang)微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)，在(zai)有(you)(you)(you)氧(yang)(yang)和有(you)(you)(you)機(ji)物(wu)的(de)(de)環境(jing)下非常活躍，氧(yang)(yang)電(dian)極(ji)的(de)(de)輸(shu)出電(dian)流與溶(rong)(rong)(rong)(rong)解(jie)(jie)氧(yang)(yang)的(de)(de)濃度(du)(du)成正比(bi)，不含(han)有(you)(you)(you)機(ji)物(wu)的(de)(de)液(ye)(ye)體通(tong)(tong)過(guo)(guo)流通(tong)(tong)池時(shi)，透過(guo)(guo)微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)膜(mo)的(de)(de)溶(rong)(rong)(rong)(rong)解(jie)(jie)氧(yang)(yang)幾乎沒有(you)(you)(you)減(jian)少(shao)。當含(han)有(you)(you)(you)有(you)(you)(you)機(ji)物(wu)的(de)(de)溶(rong)(rong)(rong)(rong)液(ye)(ye)經(jing)過(guo)(guo)流通(tong)(tong)池時(shi)，微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)消(xiao)耗(hao)大(da)量(liang)(liang)的(de)(de)溶(rong)(rong)(rong)(rong)解(jie)(jie)氧(yang)(yang)，消(xiao)耗(hao)的(de)(de)溶(rong)(rong)(rong)(rong)解(jie)(jie)氧(yang)(yang)與有(you)(you)(you)機(ji)物(wu)的(de)(de)濃度(du)(du)成正比(bi)，于是導(dao)致透過(guo)(guo)微(wei)(wei)(wei)生(sheng)(sheng)(sheng)物(wu)膜(mo)的(de)(de)溶(rong)(rong)(rong)(rong)解(jie)(jie)氧(yang)(yang)相應減(jian)少(shao)。溶(rong)(rong)(rong)(rong)解(jie)(jie)氧(yang)(yang)電(dian)極(ji)測出溶(rong)(rong)(rong)(rong)解(jie)(jie)氧(yang)(yang)濃度(du)(du)的(de)(de)變(bian)化量(liang)(liang)，從而計算出BOD 值。
