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0);">　　破璃電極的內(nèi)電極與球泡之間、甘汞電極的內(nèi)電極和陶瓷芯之間不得有氣泡，以防斷路。</span></p><p><span style="color: rgb(0, 0, 0);">　　甘汞電極中的飽和</span><a class="bjFfcClass" style="color: rgb(0, 0, 0); text-decoration: underline;"><span style="color: rgb(0, 0, 0);"><span style="color: rgb(0, 0, 0); text-wrap: wrap;">LU</span>化鉀</span></a><span style="color: rgb(0, 0, 0);">溶液的液面必須高出汞體，在室溫下應(yīng)有少許LU</span><a class="bjFfcClass" style="color: rgb(0, 0, 0); text-decoration: underline;"><span style="color: rgb(0, 0, 0);">化鉀</span></a><span style="color: rgb(0, 0, 0);">晶體存在，以保證</span><a class="bjFfcClass" style="color: rgb(0, 0, 0); text-decoration: underline;"><span style="color: rgb(0, 0, 0);"><span style="color: rgb(0, 0, 0); text-wrap: wrap;">LU</span>化鉀</span></a><span style="color: rgb(0, 0, 0);">溶液處于飽和狀態(tài)。但須注意</span><a class="bjFfcClass" style="color: rgb(0, 0, 0); text-decoration: underline;"><span style="color: rgb(0, 0, 0);"><span style="color: rgb(0, 0, 0); text-wrap: wrap;">LU</span>化鉀</span></a><span style="color: rgb(0, 0, 0);">晶體不可過多，以防止堵塞與被測(cè)溶液的通路。</span></p><p><span style="color: rgb(0, 0, 0);">　　玻璃電極表面受到污染時(shí)，需及時(shí)進(jìn)行處理。如果無機(jī)鹽附著結(jié)垢，可用稀鹽酸溶解;對(duì)鈣鎂等難溶性鹽結(jié)垢，可用EDTA二鈉溶解;沾有油污時(shí)，可用丙酮清洗。</span></p><p><span style="color: rgb(0, 0, 0);">　　電極按上述方法處理后，應(yīng)在蒸餾水中浸泡一晝夜再使用。</span></p><p><span style="color: rgb(0, 0, 0);">　　復(fù)合電極的維護(hù)與保養(yǎng)</span></p><p><span style="color: rgb(0, 0, 0);">　　電極在初次使用或久置不用時(shí)，應(yīng)把電極浸泡在3moI/L的</span><a class="bjFfcClass" style="color: rgb(0, 0, 0); text-decoration: underline;"><span style="color: rgb(0, 0, 0);"><span style="color: rgb(0, 0, 0); text-wrap: wrap;">LU</span>化鉀</span></a><span style="color: rgb(0, 0, 0);">溶液中活化2h。</span></p><p><span style="color: rgb(0, 0, 0);">　　測(cè)量時(shí)防止在塑料保護(hù)柵內(nèi)的敏感玻璃泡與硬物接觸，因?yàn)槿魏纹茡p和擦毛都會(huì)使電極失效。測(cè)量完畢應(yīng)將電極保護(hù)帽套上，帽內(nèi)應(yīng)放少量補(bǔ)充液(3mol/L的</span><a class="bjFfcClass" style="color: rgb(0, 0, 0); text-decoration: underline;"><span style="color: rgb(0, 0, 0);"><span style="color: rgb(0, 0, 0); text-wrap: wrap;">LU</span>化鉀</span></a><span style="color: rgb(0, 0, 0);">溶液)，使電極保持濕潤(rùn)。</span></p><p><span style="color: rgb(0, 0, 0);">　　電極應(yīng)避免長(zhǎng)期浸在去離子水或蛋白質(zhì)溶液和酸性氟化物溶液中，并防止和有機(jī)硅油脂接觸。</span></p><p><span style="color: rgb(0, 0, 0);">　　電極經(jīng)長(zhǎng)期使用后，如出現(xiàn)理論斜率略有降低，可把電極下端浸泡在4%氫氟酸中3~5s，用去離子水洗凈，然后在</span><a class="bjFfcClass" style="color: rgb(0, 0, 0); text-decoration: underline;"><span style="color: rgb(0, 0, 0);"><span style="color: rgb(0, 0, 0); text-wrap: wrap;">LU</span>化鉀</span></a><span style="color: rgb(0, 0, 0);">溶液中浸泡，使之復(fù)原。</span></p><p><br/></p> </div> <div id="tq6ztn8r" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/szhcy-Article-3522082/">EDI模塊清洗保養(yǎng)方案</a></li> <li>下一篇：<a href="/szhcy-Article-3515435/">合泰PH測(cè)定儀概述</a></li> </ul> </div> </div>   <div id="tq6ztn8r" class="foot_box"> <div id="tq6ztn8r" class="foot_t"> <div id="tq6ztn8r" class="w1200"> <a href="/">網(wǎng)站首頁(yè)</a>　|　<a 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