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id="8gliehdtukdw" class="ly_crumb"> <img src="/skins/270528/images/crumb_icon.png" /><p>當前位置：<a href="/">首頁</a> > <a href="/article.html">技術文章</a> > <span>pH電極的維護和保養(yǎng)</span></p> </div>   <div id="8gliehdtukdw" class="ly_NyNewsdetail"> <h1 class="NyNewsdetail_title">pH電極的維護和保養(yǎng)</h1> <div id="8gliehdtukdw" class="NyNewsdetail_tips">更新時間：2023-11-01 點擊次數(shù)：941</div> <div id="8gliehdtukdw" class="NyNewsdetail_con"> <p>　　玻璃電極的維護與保養(yǎng)</p><p>　　玻璃電極在使用前先放入蒸餾水中浸泡24h以上。</p><p>　　側<span style="color: rgb(0, 0, 0);">定pH（PH電極）時，玻璃電極的球泡應全部浸入溶液中，但稍高于甘汞電極的陶瓷芯端，以免攪拌時碰壞。</span></p><p><span style="color: rgb(0, 0, 0);">　　破璃電極的內電極與球泡之間、甘汞電極的內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，需及時進行處理。如果無機鹽附著結垢，可用稀鹽酸溶解;對鈣鎂等難溶性鹽結垢，可用EDTA二鈉溶解;沾有油污時，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，應在蒸餾水中浸泡一晝夜再使用。</span></p><p><span style="color: rgb(0, 0, 0);">　　復合電極的維護與保養(yǎng)</span></p><p><span style="color: rgb(0, 0, 0);">　　電極在初次使用或久置不用時，應把電極浸泡在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);">　　測量時防止在塑料保護柵內的敏感玻璃泡與硬物接觸，因為任何破損和擦毛都會使電極失效。測量完畢應將電極保護帽套上，帽內應放少量補充液(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。</span></p><p><span style="color: rgb(0, 0, 0);">　　電極應避免長期浸在去離子水或蛋白質溶液和酸性氟化物溶液中，并防止和有機硅油脂接觸。</span></p><p><span style="color: rgb(0, 0, 0);">　　電極經長期使用后，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，使之復原。</span></p><p><br/></p> </div> <div id="8gliehdtukdw" 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測定儀概述</a></li> </ul> </div> </div>   <div id="8gliehdtukdw" class="foot_box"> <div id="8gliehdtukdw" class="foot_t"> <div id="8gliehdtukdw" class="w1200"> <a href="/">網站首頁</a>　|　<a href="/aboutus.html">關于我們</a>　|　<a href="/products.html">產品中心</a>　|　<a href="/news.html">新聞動態(tài)</a>　|　<a href="/article.html">技術文章</a>　|　<a href="/honor.html">榮譽資質</a>　|　<a href="/order.html" target="_blank">在線留言</a>　|　<a href="/contact.html">聯(lián)系我們</a> <span><a href="javascript:;" class="toTop"></a></span> </div> </div> <div id="8gliehdtukdw" class="foot_b"> <div id="8gliehdtukdw" class="w1200"> <div id="8gliehdtukdw" class="f_b_t clear"> <div id="8gliehdtukdw" class="f_contact fl"> <p>聯(lián)系我們 </p> 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