实验地点:蚌埠市刑事警察支队
使用仪器:净信JXFSTPRP-II-01全自动液氮冷冻研磨仪
原理:全自动样品冷冻研磨仪采用了特殊的垂直左右8字型震动模式,通过大钢珠在罐体内的高频往复振动、撞击、剪切。快速的实现破碎骨头、牙齿组织的目的,且通过液氮降温,用来提取组织内DNA样本。
研磨仪优点:使研磨的样品具有更加充分、更均匀、一类相对难以研磨的样本能在短时间实现破碎。
实验步骤:
1、准备全自动液氮快速研磨仪。
2、金属适配器,以及钢珠适配器。
3、锤子敲碎取骨骼取部分,放入研磨罐,放入液氮中浸入使之不沸腾。
4、将适配器装入净信研磨仪中,倒入液氮保持温度。
5、设定参数,启动仪器至研磨程序结束,可得到如图所示样品。
实验样品研磨前后:
仪器介绍:全自动液氮冷冻研磨机JXFSTPRP-II-01(专利产品,仿冒必究!2016214095849)
应用范围:该产品专用于研磨热敏感性物质、多种动植物组织、微生物、橡胶、塑料、食品、药品、煤炭、油页岩、蜡制品、PE、PS、纺织品、树脂等及在常温下呈韧性、难以粉碎的物质。液氮研磨机就是先把上述物质被冷冻到脆化点以下,然后在研磨机内被研磨到所需的细度,而且原成分不会破坏。并且在常温下易燃易爆的物质,也能低温粉碎,效果更为显著。
产品特点:
A.数据的准确性和重现性高
1.研磨过程中样品始终处于液氮温度
2.1分钟内样品即冷却到-100℃,4分30秒内可达-196℃
3.样品瓶在破碎过程中处于全封闭状态,样品完整保留在瓶内,确保对危险、重要样品的控制
4.样品瓶均独立密封,每次破碎后清洗十分方便,避免样品间的交叉污染以及外界污染
B.多功能性,人性化设计
1.触摸式显示屏,可对研磨时间、循环周期、研磨运行频率等参数进行设置(选配)
2.可移动控制面板(选配)
3.可储存10个程序(选配)
4.可安1.5ML 2ML 5ML 10ML 25ML 50ML等样品管,进行样品研磨
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