mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">水是植物體的組成成分之一，不同植物的含水量不同。水生植物含水量達(dá)90％，草本植物含水量為70%一80%。瓜果果肉的含水量達(dá)90％以上，樹干的含水量約為50％。由于活體植物通常含水量高，通常無法常溫直接研磨，活體植物樣品處理也一直是各研究檢驗(yàn)機(jī)構(gòu)的一大難題。而處理水分需要自然晾干周期太長(zhǎng)，或加熱烘干，但減重嚴(yán)重且易造成某些低沸點(diǎn)物質(zhì)丟失，導(dǎo)致檢測(cè)結(jié)果不準(zhǔn)確。瑞紳葆分析技術(shù)（上海）有限公司的液氮冷凍研磨機(jī)根據(jù)某植物研究所要求提供解決鮮葉及果實(shí)研磨的難題。 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">二、制樣設(shè)備及工具 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">1.研磨設(shè)備 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">瑞紳葆低溫研磨機(jī)：LPM-01型液氮在線連續(xù)冷凍研磨機(jī) mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">2.磨具 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">配套2.1L食品級(jí)合金研磨罐 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">三、樣品制備 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">用剪刀將 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">樣品 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">剪碎 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">（可以放入研磨罐即可） mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">，并且填充進(jìn)冷凍研磨罐內(nèi)部。將冷凍研磨罐正確放置到工作位置。將壓頭調(diào)整到正確位置，在操作屏幕上面點(diǎn)擊壓頭開按鈕。使壓頭在正確位置并且壓緊冷凍研磨罐，關(guān)閉冷凍研磨機(jī)工作室的操作蓋。點(diǎn)擊參數(shù)界面，并且設(shè)置 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">好 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">參數(shù) mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">為：預(yù)冷卻20分鐘（磨具及樣品提前充分冷凍處理可以適當(dāng)減少預(yù)冷卻時(shí)間），深冷閥開啟溫度為-120℃，關(guān)閉溫度為-130℃，研磨時(shí)間15秒，轉(zhuǎn)速為960轉(zhuǎn)每分鐘。 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">打開液氮罐出口閥門。點(diǎn)擊設(shè)備啟動(dòng)按鈕，設(shè)備開設(shè)運(yùn)行。當(dāng)設(shè)備運(yùn)行完畢打開冷凍研磨機(jī)工作室，在操作屏幕上面點(diǎn)擊壓頭關(guān)閉按鈕 mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">后 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">打開冷凍研磨罐，取出樣品。 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">四、結(jié)論 mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">

mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt; mso-font-kerning:1.0000pt;">瑞紳葆低溫研磨機(jī)提供大容量處理一些軟質(zhì)、溫度敏感、脂肪含量高或低溫呈現(xiàn)脆性的樣品，如動(dòng)、植物或各類食品的全套解決方案，讓實(shí)驗(yàn)更方便快捷，節(jié)省了大量人力物力，具有極高的應(yīng)用潛力。