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href="http://m.cn-liling.com/">dR2800比色計</a></strong>的使用方法 <div>　?、俳油娫词箖x器穩(wěn)定，使用前至少要讓燈預(yù)熱5min；</div><div>　?、?選擇一種同底物顏色互補(bǔ)的濾光器；</div><div>　?、壅{(diào)零（用空白對照調(diào)零）；</div><div>　　④調(diào)整靈敏度；</div><div>　?、莘治鰳悠芳皹?biāo)準(zhǔn)溶液；</div><div>　　⑥由于不同比色杯的吸光特性、杯壁厚度不同，因此為了提高度，同一試驗應(yīng)用同一比色杯，且在比色槽中擺放的方位相同；</div><div>　?、呙看螠y樣前清洗比色杯；</div><div>　?、嘟?jīng)常重復(fù)測定同一溶液檢驗<strong>dR2800比色計</strong>的可重復(fù)性；</div><div>　?、嵊脴?biāo)準(zhǔn)溶液繪制標(biāo)準(zhǔn)曲線。</div><div>　　由于大多數(shù)過濾器過濾出來的光的波帶很寬，因而<strong>dR2800比色計</strong>既不能用于確定某種復(fù)合物，也無法分辨在混合液中吸收特性非常相近的兩種物質(zhì)。<strong>dR2800比色計</strong>所用光電管的變化系數(shù)為0.5%左右，因而不適合要求具有高度性的工作。使用這種zui簡單的儀器，由于儀表上對數(shù)測量刻度單位的隨意性，即使是把表上的靈敏度/刻度調(diào)節(jié)到零控點，在一個儀器上獲得的值不可直接同另一臺儀器上測得的值相比較，同一儀器的不同設(shè)置之間也不可直接比較。<strong>dR2800比色計</strong>對于特定波長的量化工作是不合適的。</div> </div> <div id="hvjh9xd" class="ny_PrevNext"> <div id="hvjh9xd" class="Prev">上一篇： <a href="/Article-746858.html">2100Q濁度儀為你提供穩(wěn)定、準(zhǔn)確的測量結(jié)果</a></div> <div id="hvjh9xd" 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