SureSTART™ 0.2 mL GOLD-Grade Glass Inserts (Level 3) for 2 mL Vials, Conical, 1000/pack - FAQs

For very polar compounds, including ionizable biomolecules and inorganic ions, the use of a plastic vial may be considered. Polypropylene vials are included in the SureSTART range as a Level 1 range of products.

Most polar analytes can be analyzed successfully in glass vials with few problems at normal analytical levels. Low concentrations may require investigation of deactivated vials, but in most cases the control of the sample pH is enough to maintain linearity.

Type 1 neutral borosilicate glass is suitable for neutral/acid samples with little change of pH caused by the glass surface.

The micro inserts have a small total volume capacity of <400 µL and can be classified as either Polyspring, conical, or flat-bottom within the SureSTART Collection. Micro inserts are placed and sealed inside a vial so they can be used in conventional autosampler racks. The smaller 6 mm diameter of the insert gives better sample recovery than a routine flat based vial with conical inserts being most effective with residual volumes of 1-2 µL. Many are held in place by a Polyspring, which cushions and centers the insert.