1. The needle filter adopts imported microporous membrane, which has small adsorption to the sample and ensures large recovery of small or high value samples. The needle filter housing is made of high-density polyethylene (HDPE) material with low dissolution and good chemical compatibility. It is ultrasonically welded without any glue or sealant, and will not contaminate the sample.
2. It adopts imported high-performance filter membrane, which has stable product quality and good reproducibility. It is an ideal choice for laboratory filtration samples. The standard interface is easy to connect to a variety of syringes, or it can be directly connected to the needle of the 7725 valve, filtered directly after injection.
At present, foreign needle filter equipment has a high degree of automation, and some special filtering equipment has appeared. At the same time, the strengthening and auxiliary measures of the needle filter process have been emphasized, which greatly improved the filtering effect of the needle filter equipment. In contrast, the domestic needle filter industry, although the current industry development is relatively fast, has basically formed a market system, but the domestic equipment to the market satisfaction rate is not high, equipment efficiency and foreign advanced level difference.