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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>河南省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>河南浸制標本生產(chǎn),浸制標本</p><p><span>***更新：</span>2020-09-29 04:01:40</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="qf8c9gd" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">新鄉(xiāng)市維克科教儀器有限公司</a></p><p><span>聯(lián)系人：</span>高經(jīng)理</p><p><span>郵箱: </span>wkkj01@163.com</p><p><span>電話: </span>15660690681</p><p><span>傳真: </span>0373_5128357</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0373-5128357</p><p><span>地址: </span>新鄉(xiāng)市金穗大道靖業(yè)公元國際413號</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="dxoyf3m" class="page-proshow02"><p class="title">詳細說明</p><div id="ey3p48n" class="box"><p><p style="text-indent:25px">植物浸制標本實驗設備與材料：1、主要設備與用具:天平、水浴鍋、標本瓶(15cm*25cm)、大燒杯(用來煮綠色標本用)、量筒、載玻片(用來固定標本)、白線(固定標本用)、剪刀、玻棒、標簽紙等。2、藥品與試劑:酒精、甲醛(或福爾馬林)、醋酸銅(或CuSO<sub>4</sub>)、冰醋酸、硼酸、H<sub>2</sub>SO<sub>3</sub>、氯化鈉、石蠟等。3、植物材料:新鮮完整的草本植株;木本植物綠色葉枝(枝條長度取25cm-30cm);成熟的新鮮紅色果蔬(如小番茄，河南浸制標本生產(chǎn)、櫻桃，河南浸制標本生產(chǎn)、紅棗、紅色小蘿卜等);新鮮黃色果蔬(如姜、梨、金橘，河南浸制標本生產(chǎn)、黃番茄等)。各準備一種顏色的植物材料。浸制標本的特點是什么？河南浸制標本生產(chǎn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南浸制標本生產(chǎn),浸制標本" src="http://tyunfile.71360.com/UploadFile/weike/637214154217666015/7867427.png"></div><p style="text-indent:25px">綠色標本浸制液　　　將醋酸銅結晶加到50%冰醋酸溶液中，加到飽和狀態(tài)為止。然后將這個飽和溶液用4倍水稀釋，加熱至80～85℃。把要做成標本的植物投到燒熱的溶液中，繼續(xù)加熱。等到看見植物由綠變褐、由褐變綠時，即可把植物取出，用清水洗凈，保存在5%福爾馬林中。對于不適于燒煮或藥液不易透入的植物，改用40%福爾馬林50毫升、水250毫升的混合液，直接浸泡植物標本，浸泡的時間，要看植物幼嫩的程序以及種類而不同，一般地說，幼苗浸3～5天，而成長的植株需要浸8～14天。河南浸制標本公司保存液對浸制標本有什么影響？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南浸制標本生產(chǎn),浸制標本" src="http://tyunfile.71360.com/UploadFile/weike/637214151167089843/5181939.png"></div><p style="text-indent:25px">浸制標本的制作過程：①按標本的大小選擇標本缸或標本瓶，并備好縛扎標本的玻璃片。玻璃片用四只橡皮凹腳，嵌入玻璃，固定在瓶內(nèi)。用于浸漬的植物標本要帶花或帶果，既要株形美觀，又要富有特色。把待浸制的植物標本用清水洗凈，存放于干凈的玻璃標本瓶中，若有綠色部分，須先在硫酸銅溶液中固定后才浸。②用玻璃片把瓶中材料固定，以免加入藥液后材料自行上浮。③把配制好的保存液加入玻璃瓶中，讓標本充分浸漬，把瓶蓋緊。④待標本沒有氣泡逸出，即用蠟密封。⑤貼標簽紙:用碳素墨水書寫種名、學名、標本產(chǎn)地、制作日期，并貼于標本瓶的上方，并涂蠟加以保護。</p><p style="text-indent:25px">制作綠色浸制標本除了用醋酸銅、醋酸液處理，也可用硫酸銅代替醋酸銅，配成飽和的硫酸銅溶液（約100毫升可溶硫酸銅6g），用硫酸銅溶液同上述方法處理綠色植物。針對有些比較薄嫩容易軟爛的植物，可以直接浸到飽和醋酸銅100ml和醋酸10-16ml的混合液中，或者浸到硫酸銅飽和溶液700ml、福爾馬林50ml、水250ml混合液中，浸泡8-14d后，取出用水洗凈，再浸入4%-5％的福爾馬林保存。用Cu置換葉綠素分子中心鎂，以銅原子為中心的葉綠素分子結構很穩(wěn)定，不容易分解破壞，且不溶于酒精或福爾馬林中，所以如此處理過的植物標本在保存液中可以保存綠色。如何正確制作浸制標本產(chǎn)品？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南浸制標本生產(chǎn),浸制標本" src="http://tyunfile.71360.com/UploadFile/weike/637214151163916015/1220957.png"></div><p style="text-indent:25px">制作植物浸制標本首先必須采集完整的標本。被子植物盡量采到花、果和種子，草本植物要求盡量根、莖、葉、花、果實和種子采全。對一-些有地下莖的種類，必須采集這些植物的地下部分,否則將難以鑒定。標本采集后，在制作前還必須經(jīng)過清理，目的是除去雜質(zhì)，使要展示的特征更為突出。清理一是除去枯枝爛葉，除去凋萎的花果，若葉子太密集，還應適當修剪；二是用清水洗去泥沙雜質(zhì)。標本清理后應盡快進行制作，否則時間太久，有的標本的花、葉容易變形，影響效果。了解更多浸制標本資訊可致電新鄉(xiāng)維克科教儀器有限公司。陜西浸制標本廠家銷售</p><p style="text-indent:25px">浸制標本有哪些分類？河南浸制標本生產(chǎn)</p><p style="text-indent:25px">浸制標本在固定和保存過程中，出現(xiàn)的變色、退色、變形、霉變等現(xiàn)象，均為程度不同的質(zhì)變。主要有以下幾種情況：①化學質(zhì)變。由化學反應引起的質(zhì)變。如類胡蘿卜素是分布于植物體的色素，它們易與空氣中的氧作用，發(fā)生自動氧化反應而引起退色，其中脂肪的破壞，是由于脂肪受熱或金屬催化劑的活化后，分解成不穩(wěn)定的游離基，再與氧生成過氧化物游離基，進而生成氫過氧化物而分解。②生化質(zhì)變。標本如果固定不充分、不及時，就不可能迅速殺死細胞，細胞就會發(fā)生死亡后變化，導致細胞膨脹、解體。酶促褐變是引起標本變色的原因，它是由酚酶催化酚類物質(zhì)，形成醌及其聚合物而造成的。甲酚酶可使植物體中的酪氨酸生成多巴，進而生成多巴色素。多巴色素經(jīng)聚合作用成為黑**素。③生物質(zhì)變。微生物遇到適宜的環(huán)境條件，會害各種生物材料，通過酶的作用引起被侵害物的生物降解。同時，微生物還靠本身的著色作用，引起標本變色。④光化學質(zhì)變色素分子吸收可見光后，形成電子激發(fā)態(tài)，被激發(fā)的色素分子參與光氧化反應造成色素的裂解。河南浸制標本生產(chǎn)</p><p style="text-indent:25px">新鄉(xiāng)市維克科教儀器有限公司辦公設施齊全，辦公環(huán)境優(yōu)越，為員工打造良好的辦公環(huán)境。致力于創(chuàng)造***的產(chǎn)品與服務，以誠信、敬業(yè)、進取為宗旨，以建維克科教產(chǎn)品為目標，努力打造成為同行業(yè)中具有影響力的企業(yè)。我公司擁有強大的技術實力，多年來一直專注于實驗室器材設備、教學儀器設備、玻璃儀器、體育用品、辦公用品、機械設備銷售及進出口貿(mào)易；展覽展示服務 “專業(yè)務實，充滿活力”是本公司銷售團隊的一大特色，而“安全快捷”則是本公司物流團隊的處事的宗旨。　　維克人始終堅持“誠信為本，服務大教育”的理念，把質(zhì)量、服務、發(fā)展、超越作為永恒的主題，不斷為新老客戶奉獻更質(zhì)量的產(chǎn)品、更合理的價格、更貼心的服務。另公司面向全國招代理商，歡迎來電咨詢。的發(fā)展和創(chuàng)新，打造高指標產(chǎn)品和服務。誠實、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準則。公司致力于打造***的病理切片，浸制標本，生物標本，顯微鏡。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1463401.html</p></div></div></div></div></div><div id="lv2r9qi" class="page-right twoColRt"><div id="wbyvxp2" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wq32qi3" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" 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