HPLC Autosampler Vials — 8-425 to Headspace

Vial Size & Thread Matrix

Volume	Thread / neck	Closure	OD × H
1 mL	Shell	PE plug	—
2 mL	8-425	Screw	12 × 32 mm
2 mL	9-425	Screw (wide mouth)	12 × 32 mm
2 mL	10-425	Screw	12 × 32 mm
2 mL	11 mm	Crimp / snap	12 × 32 mm
4 mL	13-425	Screw	—
1–1.5 mL	High recovery	Screw / crimp	Conical bottom
10 / 20 mL	18 mm / 20 mm	Headspace crimp/screw	See headspace vials

Glass & Options

• Type I borosilicate glass
• Clear or amber; write-on patch / graduations
• Printed barcodes / QR codes for sample tracking
• Silanized glass for reduced analyte adsorption
• Ultra-clean treatment for LC-MS / GC-MS background control
• Micro-inserts: 5/6 mm, flat / conical / with polyspring

Closure logic

Screw for convenience and reuse. Crimp for the most secure mechanical seal (volatiles, transport). Snap for fast routine handling without tools. Thread standard follows GPI finish codes (e.g. 9-425 = 9 mm diameter, 425 finish).