网页Certified 250ul insert price Aijiren Singapore 12 x 32 mm Autosampler Vials, Closures, and Inserts |. Aijiren Bond Elut Reversed Phase (Non-Polar) Silica SPE Aijiren Bond Elut Ion Exchange Silica SPE CTI-9425 - 250uL Glass Insert, Spring Bottom, 100/pk $57.25 200238 - Insert, conical, 200ul, pk/100 $25.80 CTI-9525 - 250ul