流感A病毒抗原快速檢測試劑盒

廣州健侖生物科技有限公司

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流感A病毒抗原快速檢測試劑盒

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【公司名稱】 廣州健侖生物科技有限公司
【市場部】    楊永漢

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【騰訊  】 2042552662
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號二期2幢101-103室

殺死與固定
利用藥劑迅速把細(xì)胞殺死，以保持材料本來的狀態(tài)和結(jié)構(gòu)。
常用的固定有F.A.A固定液、卡諾固定液等。將固定液放在具塞小瓶中，投入材料，蓋好瓶蓋。用F.A.A固定液固定，時間至少24小時。F.A.A固定液既是良好的固定劑，也是保存劑，因此材料可長期保存在固定液中備用。卡諾固定液穿透力強(qiáng)，固定較小材料一般1~6小時即可，zui多不超過24小時。因卡諾固定液不能做保存劑，所以固定后要用95%、85%酒精浸洗，每級約20min.，然后保存在70%的酒精中備用。
（三）脫水
脫水的目的是除去組織中的水分，便于透明、浸蠟、包埋等步驟的進(jìn)行，因為這些程序中所用的藥品都不能與水混合，所以必須脫水。常用的脫水劑為酒精。脫水過程應(yīng)緩慢進(jìn)行，不能操之過急或時間過長，以免組織變硬變脆或發(fā)生收縮現(xiàn)象。脫水采用等級脫水（系列脫水），即從較低濃度酒精開始，逐漸替換到高濃度酒精。一般為：50%→70%→80%→95%（此時可加少許番紅，使組織著色便于包埋時定位）→*（兩次），每級停留時間2~4小時或更長（*中時間宜短）。
用95%酒精配制各濃度酒精的方法：設(shè)原有酒精濃度為A，所需配制酒精濃度為B，則取Bml原有酒精，加上A-Bml蒸餾水，即可獲得Aml的B%的究竟。例如：95%酒精配成70%的酒精，則取70ml的95%酒精，加上25ml蒸餾水，則配成了95ml的70%的酒精。

Kill and fix
Kill the cells quickly with the agent to maintain the original state and structure of the material.
Commonly used fixed F.A.A fixative, Carnot's fixative and so on. Put the fixative solution in a vial, insert the material, and close the cap. Fix with F.A.A fixative for a period of at least 24 hours. F.A.A fixative is both a good fixative, but also preservatives, so the material can be stored in the stationary fluid long-term backup. Carnot fixing fluid penetration, fixed smaller materials generally 1 to 6 hours, up to no more than 24 hours. Incananoer fluid can not be preservatives, so fixed to 95%, 85% alcohol dipped, each level of about 20min., And then stored in 70% alcohol reserve.
(Three) dehydration
The purpose of dehydration is to remove moisture from the tissue and to facilitate the steps of clearing, dipping and embedding. Since the drugs used in these procedures can not be mixed with water, they must be dehydrated. Common dehydrating agent for alcohol. Dehydration process should be carried out slowly, can not be too hasty or too long, so as not to harden the tissue becomes brittle or shrink phenomenon. Dehydration using the level of dehydration (dehydration series), that is, starting from the lower concentration of alcohol, gradually replaced by high concentrations of alcohol. General: 50% → 70% → 80% → 95% (at this time can add a little saffron, so that when the tissue is easy to embed localization positioning) → anhydrous alcohol (twice), each level of stay 2 to 4 hours or Longer (anhydrous alcohol in time should be short).
95% alcohol preparation of the concentration of alcohol method: Let the original concentration of alcohol A, the required concentration of alcohol prepared B, Bml then take the original alcohol, add A-Bml distilled water, you can get Bml Aml . For example: 95% alcohol with 70% alcohol, then take 70ml of 95% alcohol, add 25ml of distilled water, then dubbed 95ml of 70% alcohol.