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href="http://www.cdcfah.com/cp/third-hgzjt_yyzjtic/">醫(yī)藥中間體</a>?廣東標準品服務 **** 深圳振強生物技術(shù)供應</p><div id="bf2i2ul" class="leftbox clearfix"><h1>廣東標準品服務 **** 深圳振強生物技術(shù)供應</h1><div id="ga3fza9" class="proBig"><div id="2c8dkhg" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZZQSW/637352820370742188/4582370.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jyaskwv" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/SZZQSW/637352820370742188/4582370.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qfheg8r" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>廣東標準品服務,標準品</p><p><span>***更新：</span>2021-01-28 03:11:43</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="hw72ace" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳振強生物技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>顏佳</p><p><span>郵箱: </span>450804601@qq.com</p><p><span>電話: </span>15920483169</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.chem-strong.com</p><p><span>手機: </span>0755-66853366</p><p><span>地址: </span>龍崗街道南聯(lián)社區(qū)碧新路(龍崗段)2055號1201</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="mgd7xpr" class="page-proshow02"><p class="title">詳細說明</p><div id="aprjqc8" class="box"><p><p style="text-indent:25px">必要時，標準品根據(jù)其穩(wěn)定特性、使用頻率，廣東標準品服務、儲存條件變化、測量結(jié)果可信度等情況，按下列核查方式中的一種對其特性量值的穩(wěn)定性進行核查：a）檢測足夠穩(wěn)定的、不確定度與被核查對象相近的實驗室質(zhì)控樣品；b）與上一級或不確定度相近的同級CRM進行量值比對；c）送有資質(zhì)的檢測/校準機構(gòu)確認；d）進行實驗室間的量值比對；e）測試近期參加能力驗證且結(jié)果滿意的樣品；f）采用質(zhì)量控制圖進行趨勢檢查等，廣東標準品服務。期間核查發(fā)現(xiàn)不合格的措施：在期間核查中發(fā)現(xiàn)不合格，須立即停止使用，并追溯對之前檢測結(jié)果的影響，廣東標準品服務，執(zhí)行“不符合工作管理程序”。標準品的編號規(guī)則中盡量可以體現(xiàn)標物的基本信息和購置驗收日期。廣東標準品服務</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東標準品服務,標準品" src="https://tyunfile.71360.com/UploadFile/SZZQSW/637352820370742188/4582370.png"></div><p> 6、滴定液的標定和復標： </p> <p> 滴定液配制、標定方法按藥典執(zhí)行。一般由一人標定，第二人復標，標定須作平行標定，并不得少于3次，且其結(jié)果的相對偏差不得超過0.1%。標定和復標二結(jié)果的相對偏差不得超0.15%，否則重標，如標定和復標誤差符合要求，則將二者的算術(shù)平均值作為滴定結(jié)果。 </p> <p> 復標合格的滴定液及配制好的標準溶液，須貼上標簽，寫明品名、濃度，配制日期、標定日期、溫度、標定人、復標人、使用效期等。滴定液應定期復標，其使用期限一般為3個月。 </p> <p> 超過期限不得使用。滴定液與標準液應按《中國藥典》要求貯存，對光易變化的滴定液、標準液應貯于棕色瓶中，瓶口捆扎塑膜防潮、防污染，由專人保管。超過使用期限的標準液及滴定液，保管員不得發(fā)放，使用人員不得使用。上海標準品有什么要求標準品適用于檢驗室的規(guī)范管理。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東標準品服務,標準品" src="https://tyunfile.71360.com/UploadFile/SZZQSW/637352820625644532/7428866.png"></div><p style="text-indent:25px">標準品/標準樣品物理性狀的描述，例如，樣品大小、顆粒大小、金屬圓柱體或圓盤的尺寸、標準品/標準樣品的容器的性質(zhì)也應當給出。也應當說明穩(wěn)定劑或保護劑的存在（例如，置于乙醇水溶液中的升汞）。同一種標準品/標準樣品也可能有不同的形狀和尺寸，也應當給出這方面的信息。預期用途只要定值特性不**與某個特別的分析或測量程序相聯(lián)系（例如，經(jīng)過規(guī)定過濾程序后的礦物質(zhì)中的元素分析或采用仔細規(guī)定的方法測量閃點），生產(chǎn)者應當盡可能清楚地闡明所發(fā)行的標準品/標準樣品的主要目的，但這種陳述并不意圖限制標準品/標準樣品在其他方面的使用。</p><p style="text-indent:25px">復雜基體中其他元素的近似含量，也可以包括在證書中。但是該信息應當清晰地與標準值區(qū)分開。為了避免混亂，不要與標準值列在同一表中。標準品定值日期證書中應當注明它的次發(fā)布日期。如證書中包含同一批CRM修正值的情況下，原證書的日期和所有的修訂日期均應當給出。有效期證書可以含有一個定值單位不再保證標準值有效的截止日期。對業(yè)已證明不穩(wěn)定或可能不穩(wěn)定的標準品/標準樣品來說，這應當是一種習慣做法。以上這些是需要進行注意的。一次購買多支同一種標準品時，即便其標物號和批次號一樣，也應給每一支標準品獨特性編號。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東標準品服務,標準品" src="https://tyunfile.71360.com/UploadFile/SZZQSW/637352820635302735/2618145.png"></div><p style="text-indent:25px">標準品對于測試，偏倚校正更加復雜，有證標準品/標準樣品的屬性很難完全反映日常樣品的屬性。在很多情況下，建議改進方法以便減少或消除偏倚，而不是嘗試校正。有些標準給出了可接受偏倚的準則。設備校準，建立校準曲線。為樣品賦值。約定標尺。如：在地質(zhì)實驗中用于測量硬度的Mohs'標尺，該標尺是以賦于十個硬度級的十個礦物為基礎，每一比較硬的礦物都能將比較不硬的礦物劃痕。pH標尺：由于單離子活度不能用實驗方法測量，因而pH被認為是一個不嚴格的物理量。標準品以效價單位(U)表示。廣東標準品服務</p><p style="text-indent:25px">標準品必須性質(zhì)均勻。廣東標準品服務</p><p style="text-indent:25px">有證書（certificate）的標準品就是有證標準品（CRM）嗎？有證書的標準品不一定就是有證標準品。有證標準品是指“采用計量學上有效程序測定的一種或多種規(guī)定特性的標準品/標準樣品(RM)，并附有證書提供規(guī)定特性值及其不確定度和計量溯源性的陳述”。因此，有證書的標準品不一定就是有證標準品。有證標準品應具有以下基本特征：（1）溯源性和不確定度聲明；（2）標準品的制備、定值及認定符合由ISO指南34和指南35給出的有效程序，我國已將上述指南等效轉(zhuǎn)化為JJF1342《標準品研制（生產(chǎn)）機構(gòu)通用要求》和JJF1343《標準品定值的通用原則及統(tǒng)計學原理》，成為國家標準品的評審、發(fā)布的技術(shù)依據(jù)。廣東標準品服務</p></p><br /><p>文章來源地址: 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