Agilent APCI Negative Ion Performance Standard G2425A

The Agilent G2425A APCI Negative Ion Performance Standard is a ready-to-use LC/MS performance verification solution intended for atmospheric pressure chemical ionization (APCI) negative‑ion mode. Authorized distributors and Agilent catalogs list the product as supplied in five 1 mL ampoules and identify the calibrant component as 4‑nitrophenol. It is used to tune, verify and document negative‑ion response and general instrument performance during routine LC/MS instrument qualification and maintenance.

Key Features:

• Manufacturer part number: G2425A
• Intended use: APCI negative‑ion LC/MS performance/tuning standard
• Packaging: 5 x 1 mL ampoules (ready‑to‑use).
• Reported calibrant/analyte: 4‑Nitrophenol (listed by authorized distributors)
• Note: distributor listings indicate hazmat shipping/fees apply

Advantages:

• Provides a manufacturer‑sourced calibrant for consistent APCI negative‑ion tuning and performance checks.
• Pre‑measured 1 mL ampoules reduce preparation variability and cross‑contamination risk compared with bulk concentrates.
• Available from Agilent and authorized distributors to simplify instrument qualification and documentation during OQ/PV or routine maintenance.