微孔滤膜filter membrane
微孔滤膜广泛应用于样品分析和实验室样品过滤中。混合纤维素酯膜（水系滤膜）由硝酸纤维素酯和醋酸纤维素酯制成，是一种多孔性的精密过滤材料，滤膜表面孔径分布均。相比较于硝酸纤维膜，其一致性和表面的光滑程度都要更好。此类膜经典应用于溶液中悬浮微粒的粒子计数和分析。尼龙膜（有机系滤膜）材质强韧，适用于HPLC中的大部分溶液（如酒精）过滤，尤其对气体净化和微粒重量分析有独到之处。
Membrane is widely used in analytical and laboratory filtration. Mixed cellulose ester membrane(for hydrophilic) is a mixture of cellulose acetate and cellulose nitrate. It is a porous delicate filtering material and the pore evenly distribute on the membrane surface, provides a more uniform and smoother surface compared to pure nitrocellulose membrane. This membrane is typically used to count or analyze particles contained in liquids or captured from aerosols. Nylon membrane(for hydrophobic) is strong and compatible with a broad range of aqueous solution including alcohols and solvents used in HPLC work. It is suitable for air decontamination and particles analyze.
技术参数：Specification
品名: 水系滤膜，有机系滤膜
Name: hydrophilic Membrane （water-loving）,hydrophobic Membrane （water-hating）
材质: 混合纤维素酯，尼龙
Materials：Mixed cellulose ester, nylon
公称孔径Pore size：0.22um，0.45um，0.8um.
直径Diameter：13mm，25mm，47mm，50mm，100mm，150mm
选膜小建议：Suggestion
1. 判断微粒的大小是被保留还是被过滤。滤膜将保留所有直径大于或等于公称直径的粒子。
Determine the particle size to be retained or filtered. Membranes will retain all particles equal to, and larger than their designated pore size.
2. 估计要过滤的液体或气体与滤膜在化学性质方面能否共存。判断出将过滤的各种溶液混合后是否能共存。
Assess the chemical compatibility of the membrane filter with the liquid or gas to be filtered. Consider the chemical resistance properties of all the parts that will contact the filtrate.
3. 还要考虑选择水系还是有机系滤膜，温度，流速，和是否需灭菌等因素。
Also consider hydrophilic or hydrophobic membranes, temperature, flow rate, and sterilization needs.
针样品过滤器 Syringe filters
使用针样品过滤器是在处理高效液相和气相进样前过滤微量样品的最快速有效的方法，它无需换膜和清洗滤器，省去了繁赘复杂的准备，节省大量的时间和不必要消耗的精力。此产品主要应用于样品预滤、澄清除颗粒、液体和气体的除菌过滤。在实验室中应用广泛，外壳采用聚丙烯塑料，由超声波焊接成一体，耐高压，边缘结合缜密，无漏液。
Using syringe filters are the most fast and effective method of filtering micro sample before sampling in HPLC or GC. There’s no need to change membraces or clean the filters, no need to prepare them. And save a lot of time and energy. It is widely used in filtering samples, separating particles, germ filtering from liquid or gas. The housing is adopted polypropylene plastic, endures high-pressure, prevents leakage.
技术参数：Specification
材质Materials：
水系：混合纤维素酯
For hydrophilic: Mixed cellulose ester
有机系：尼龙
For hydrophobic: nylon
公称孔径Pore size：0.22um，0.45um，0.8um.
直径Diameter：13mm，25mm.
外壳材质：聚丙烯塑料
Housing: PP plastic
包装：100只/包
Qty：100/box
