This kit is designed for extraction of nucleic acid (DNA/RNA) in human biological fluids such as nasopharyngeal swabs, sputum, broncho lavage fluid and alveolar lavage fluid. This kit provides all necessary reagents for highly pure viral nucleic acid (DNA/RNA) extraction from samples such as human serum, plasma, urine, cell culture supernatant, nasopharyngeal swabs, sputum, ascites and broncho lavage fluid. The extracted pure viral nucleic acid can be directly applied for Reverse Transcription, PCR, RT-qPCR, RT-PCR, Next Generation Sequencing, Northern Blot and other related assays. Based on the technology of purification of silica gel column, samples are lysed in the high concentration guanidine salt lysis solution, so the nucleic acid could be absorbed on filter membrane by the interaction of hydrogen bond and electrostatic, while proteins and other impurities cannot be absorbed. This kit enables a simple, fast, safe and efficient operation process to extract viral nucleic acid with a high yield, high purity, stable and reliable quality.
| Supplier: | Elabscience |
| Supplier-Nr: | EL-XG-04 |
Properties
| Application: | Viral nucleic acid (DNA/RNA) extraction |
Database Information
Handling & Safety
| Storage: | +4°C |
| Shipping: | +4°C (International: °C) |
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B.阴离子去垢剂 常见的有十二烷基硫酸钠和十二烷基璜酸钠。前者可促进核蛋白的溶解,将核酸释放出来,并对核酸酶有一定抑制作用,常用于核酸的提取。
C.阳离子去垢剂 如洁尔灭、新洁尔灭、CTAB、CPC、ZEPH、克菌定、消毒净(TMPB)、杜灭芬等,消毒灭菌类居多。
D.天然表面活性剂 又称为生物表面活性剂,包括种类较为广泛,如各种树胶(阿拉伯胶、杏胶、桃胶、果胶)、明胶、皂甙、卵磷脂、豆磷脂、琼脂、海藻酸钠、酪蛋白、胆甾醇、胆酸类、多糖类(如环糊精)等。
E.两性表面活性剂 在碱性水溶液中呈阴离子表面活性剂的性质,起泡性好,去污力也强;在酸性溶液中则呈现阳离子表面活性剂特征,其杀菌性很强。向左转|向右转
RAW细胞,6孔板,RIPA提取蛋白(提前加好PMAF),每孔100uLRIPA,冰上用tip倒过来刮细胞,放置15min,12000gX15min离心,取上清。做WB时,沸水煮5min,胶冻样物质还是存在。
操作过程中发现离心后还是有胶冻样物质,和上清混在一起无法分开,严重的时候基本上全是胶冻样物质。
这个胶冻样物质应该是DNA,园友提供的方法为用超声碎裂器,但是我们实验室没有。请问还有别的方法可以使用么?
表面活性剂:通常由一个极性头和一个非极性尾组成,用于去除难溶于水的污渍
漂白剂:通常含次氯酸盐成分,原理为其氧化性
稀盐酸:用于去除碱性的污渍,如马桶中的结块
碳酸钠溶液:用于去除油渍,其原理为酯在碱溶液中水解,参见皂化反应
我打算用HPLC分离已经初步纯化的蛋白,大小40kd到200kd,机器是安捷伦1200.
目前只有C18的柱子,用来分环肽。
如果分比较大的蛋白,有什么效果相对好的柱子,请推荐一下。
在网上见到有人说C18也可以试着分析大蛋白,不知道会不会堵,洗不下来?

