實(shí)驗(yàn)?zāi)康模?/strong>研磨尼龍勺,將樣品研磨層粉末,更好的檢測(cè)其成分等一系列實(shí)驗(yàn)。
實(shí)驗(yàn)地點(diǎn):梅里埃營(yíng)養(yǎng)科學(xué)實(shí)驗(yàn)室
實(shí)驗(yàn)材料和器具:
樣品:尼龍勺
儀器:全自動(dòng)液氮冷凍研磨儀(上海凈信,JXFSTPRP-II)
耗材:專(zhuān)用適配器,研磨管
試劑:液氮若干
實(shí)驗(yàn)步驟
1.準(zhǔn)備好研磨管,將研磨管和研磨球清洗干凈,并滅菌滅酶;
2.將需要研磨的樣品剪成小塊,放入準(zhǔn)備好的研磨管中,加入研磨珠。蓋好蓋子;
3.將裝有組織樣品的研磨管放入液氮中,冷凍至不沸騰為止;
4.取出已經(jīng)冷凍的適配器,把冷凍好的不銹鋼研磨管取出插入適配器中;
5.將適配器裝入凈信研磨儀中;
6.設(shè)定好參數(shù),啟動(dòng)儀器至研磨程序結(jié)束,可得到粉末狀樣品。
實(shí)驗(yàn)結(jié)果
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