Autovial™非針頭式濾器是一種預(yù)裝的濾器，用于除去樣品中的微粒。它用一個簡單、一次性的裝置代替了注射器和過濾器的組合。

Autovial濾器由2部分組成：一個逐層過濾筒和一個活塞，可過濾5-12ml樣品。

Autovial可根據(jù)應(yīng)用選擇濾膜。樣品可以被注入5ml或12ml的過濾筒，推動活塞直到過濾筒底部，在活塞和樣品之間有一個空氣層。將Autovial的頭部置于自動加樣器小瓶或容器口，推動活塞，可直接將濾除液收集，然后在儀器上操作。

特點
·一體化裝置省時，不用安裝，方便操作
·可選過濾介質(zhì)，應(yīng)用于不同樣品
·可用于有害樣品，一體化設(shè)計避免了濾器突然脫離的風(fēng)險
·內(nèi)置排氣設(shè)計，*大化樣品回收
·可選無菌包裝
·獨特的預(yù)濾設(shè)計，可用于難于過濾的樣品（Autovial 5中無預(yù)濾器，Autovial 12可選預(yù)濾器）
·可選玻璃纖維或聚丙烯預(yù)濾器

根據(jù)應(yīng)用不同，可選不同的Autovial濾膜
·醋酸纖維素（CA）：低非特異性蛋白結(jié)合、高載量膜，用于生物溶液
·玻璃微纖維（GMF）：深度過濾，水相或有機相溶液
·尼龍（NYL）：水相或有機相樣品，pH3-10
·聚醚砜（PES）：低非特異性蛋白結(jié)合膜，用于水相溶液
·聚丙烯（PP）：疏水膜，抗大多數(shù)有機溶劑
·聚四氟乙烯（PTFE）：Teflon膜，用于50%以上的有機溶劑
·聚偏二氟乙烯（PVDF）：低非特異性蛋白結(jié)合膜，用于水相溶液或有機溶劑

**號 # 4,859,336

Autovial devices are comprised of two parts: a graduated filter barrel and a plunger. The proven design features an integral filter, built-in air purge and a support stand that protects the recessed slip-luer tip. They are available in a 5 ml and 12 ml volume capacity.

The Autovial filter is selected according to membrane compatibility with the sample. In practice, the sample is poured into the 5 ml or 12 ml capacity filter barrel. The plunger is inserted into the barrel until the bottom is securely in place; there is a gap of air between the sample and plunger. Then, the tip of the Autovial is placed into the mouth of an autosampler vial or container and the plunger compressed. Filtration begins immediately and, as the plunger is compressed until it reaches the bottom, the membrane is purged with air for maximum sample recovery. For direct instrument injection, a needle is placed on the Autovial slip-luer outlet.

• Single unit convenience saves time. No assembly required – easier to load
• Choice of filter media. Compatible with a wide range of sample types
• Ideal for hazardous samples. Self contained device eliminates risk of filter pop-off
• Built-in air purge maximizes sample recovery
• Sterile option available to maintain sample integrity
• Unique prefilter design for difficult-to-filter samples (no prefilter in Autovial 5 and in selected Autovial 12)
• Choice of glass fiber or polypropylene prefilters

• Cellulose Acetate (CA): low nonspecific protein binding and high loading capacity membrane for biological solutions
• Glass microfiber (GMF): depth filter for samples in aqueous or organic solutions
• Nylon (NYL):  for aqueous and organic samples within a pH range between of 3 to 10
• Polyethersulfone (PES): low non-specific protein binding membrane for samples in aqueous solutions
• Polypropylene (PP): Hydrophobic membrane. Resistant to a wide range of organic solvents
• Polytetrafluorethylene (PTFE): Teflon membrane for samples with > 50% organic solvent
• Polyvinylidene Fluoride (PVDF): low nonspecific protein binding membrane for samples in aqueous solutions and/or organic solvents

Patent # 4,859,336

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