Solid Phase Extraction Column Spe Cartridge C18 500mg 6ml

Introduction
   C18 is a silica based sorbent bonded with C18(octadecyl) groups that provides hydrophobic interactions in reversed phase mode. 
GREEN MALL ®series are characterized with the best quality and superior performance in chromatography analysis.
GREEN MALL ®SPE Columns are packed with high purity and spheripol sorbents with even distribution,
which ensures the reproducibility and consistency, so that a safe, reliable and efficient sample preparation process is guaranteed.

Features
1.High purity silica gel
2.Smooth spheripol sorbent
3.Even distribution

Advantages
1.Perfect reproducibility
2.Consistent results
3.Better selectivity
4.Very competitive prices

About C18 resin
C18 is a reversed-phase sorbent based on silica gel, with high bonding density, less lost, high rate of recovery.

(1)What is your terms of packing?
Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

(2)Are you a manufacturer?
Yes, we have over 10 years of experience in producing filters and HPLC products and we do OEM for several famous brands.

(3)Is there a minimum order?
No. You can order one pack, but the freight cost will be very high. We suggest you to buy more to make the freight worth. We normally send by courier, like DHL, TNT.

(4) Do you test all your goods before delivery?
Yes, we have 100% test before delivery.

(5)How do you check all the goods in the production line?
We have spot inspection and finished product inspection. 

(6)How about your delivery time?
Generally, it will take 3 to 7 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

(7)What is your sample policy?
Samples for free. Customers to afford the freight.