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mso-font-kerning:1.0000pt;">民以食为天,食以安为先。对于食品安全公众一贯十分重视,然而食品分析样品处理一直是各检验、研究及海关机构的一大难题,食品大多含糖分高,软质,研磨容易变形,而低温冷冻后呈现脆性易研磨,且样品量巨大,手动液氮研磨工作量大难以完成。瑞绅葆分析技术(上海)有限公司的液氮冷冻研磨机根据某海关技术中心要求提供解决食品如汤圆、士力架及豆干等整体研磨的难题。
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mso-font-kerning:1.0000pt;">二、制样设备及工具
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mso-font-kerning:1.0000pt;">1.研磨设备
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mso-font-kerning:1.0000pt;">瑞绅葆低温研磨机:LPM-01型液氮在线连续冷冻研磨机
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mso-font-kerning:1.0000pt;">2.磨具
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mso-font-kerning:1.0000pt;">配套2.1L食品级合金研磨罐
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mso-font-kerning:1.0000pt;">三、样品制备
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mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">用剪刀将
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mso-font-kerning:1.0000pt;">样品
mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">剪碎
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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;">,并且填充进冷冻研磨罐内部。将冷冻研磨罐正确放置到工作位置。将压头调整到正确位置,在操作屏幕上面点击压头开按钮。使压头在正确位置并且压紧冷冻研磨罐,关闭冷冻研磨机工作室的操作盖。点击参数界面,并且设置
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mso-font-kerning:1.0000pt;">好
mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">参数
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mso-font-kerning:1.0000pt;">为:预冷却30分钟(磨具及样品提前充分冷冻处理可以适当减少预冷却时间),深冷阀开启温度为-110℃,关闭温度为-120℃,研磨时间1分钟,转速为1300转每分钟。
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mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">打开液氮罐出口阀门。点击设备启动按钮,设备开设运行。当设备运行完毕
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mso-font-kerning:1.0000pt;">洁癖
mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">打开冷冻研磨机工作室,在操作屏幕上面点击压头关闭按钮
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mso-font-kerning:1.0000pt;">后
mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;mso-font-kerning:1.0000pt;">打开冷冻研磨罐,取出样品。清理冷冻研磨罐,关闭液氮罐出口阀门,关闭空压机出口阀门,以及空压机电源,关闭冷冻研磨机电源。
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mso-font-kerning:1.0000pt;">四、结论
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mso-hansi-font-family:Calibri;mso-bidi-font-family:'Times New Roman';font-size:10.5000pt;<em></em> mso-font-kerning:1.0000pt;">瑞绅葆低温研磨机提供大容量处理一些软质、温度敏感、脂肪含量高或低温呈现脆性的样品,如动、植物或各类食品的全套解决方案,让实验更方便快捷,节省了大量人力物力,具有极高的应用潜力。