AB Sciex API 4000 Triple Quadrupole LC-MS/MS System (Refurbished)

Overview

The AB Sciex API 4000 Triple Quadrupole LC-MS/MS System is a high-performance, refurbished liquid chromatography–tandem mass spectrometry platform engineered for quantitative bioanalysis and targeted qualitative screening in regulated and research environments. Based on proven triple quadrupole architecture, the system employs electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) via its proprietary TurboIonSpray® source to deliver robust, reproducible ion generation across diverse compound classes. Its core measurement principle relies on selected reaction monitoring (SRM) and multiple reaction monitoring (MRM), enabling precise quantification of low-abundance analytes in complex biological matrices—such as plasma, serum, urine, tissue homogenates, and environmental extracts—with high specificity and dynamic range. The instrument’s design emphasizes operational stability under sustained throughput conditions, making it particularly suitable for applications requiring regulatory compliance, method validation, and long-term data integrity.

Key Features

• Proprietary V-type TurboIonSpray® source with dual heater configuration and optimized gas dynamics for enhanced desolvation and ion transmission efficiency.
• Plug-and-play interchangeability between TurboIonSpray® and APCI probes—no realignment or recalibration required during source switching.
• Patented curtain gas technology and collision-focused Q0 quadrupole for reduced chemical noise and improved signal-to-noise ratio.
• Linear Accelerator (LINAC™) collision cell enabling high-efficiency fragmentation, minimized memory effects in MRM transitions, and sub-second dwell times without sensitivity loss.
• Pulse-counting electron multiplier detector supporting rapid polarity switching (positive/negative) within a single acquisition cycle.
• Two-stage air-cooled turbomolecular vacuum system with automatic shutdown protocol upon power interruption.
• Compact footprint (130 cm L × 50 cm D × 52 cm H) and compatibility with standard laboratory infrastructure (15–30 °C ambient, 208–240 V AC, high-purity nitrogen and zero-air supply).

Sample Compatibility & Compliance

The API 4000 accommodates a broad spectrum of sample types—including small-molecule pharmaceuticals, peptides, metabolites, pesticides, mycotoxins, steroids, and endogenous biomarkers—across matrices such as whole blood, dried blood spots, cerebrospinal fluid, plant extracts, wastewater, and food homogenates. Its performance aligns with widely accepted analytical standards including ASTM D7574 (pesticide residue analysis), ISO 17025 (general competence of testing labs), USP <1225> (validation of compendial procedures), and FDA Bioanalytical Method Validation Guidance (2018). When operated with Analyst® software configured for audit trail, electronic signatures, and secure user access controls, the system supports 21 CFR Part 11 compliance for electronic records and signatures in GxP environments.

Software & Data Management

Controlled exclusively by SCIEX Analyst® software (v1.6.3 or later), the API 4000 provides integrated acquisition, processing, and reporting workflows. Analyst enables real-time MRM optimization, automated calibration and tuning, batch processing with internal standard normalization, and customizable report templates compliant with laboratory information management systems (LIMS). Raw data files (.wiff) are stored in a structured binary format with embedded metadata—including instrument parameters, sequence logs, and user annotations—ensuring traceability and version control. All software modules undergo routine patch updates to maintain compatibility with current Windows OS versions and cybersecurity requirements.

Applications

• Pharmacokinetic and toxicokinetic studies in preclinical and clinical development.
• Therapeutic drug monitoring (TDM) and newborn screening for inborn errors of metabolism.
• Residue analysis in food safety (e.g., veterinary drugs, antibiotics, growth promoters) per EU Commission Decision 2002/657/EC.
• Environmental monitoring of persistent organic pollutants (POPs), pharmaceuticals in water, and emerging contaminants.
• Metabolomics profiling using stable-isotope dilution assays (SIDA) and targeted pathway analysis.
• Protein digestion product characterization via bottom-up proteomics workflows (peptide quantification, PTM detection).
• Non-covalent interaction studies employing native MS conditions with gentle desolvation settings.

FAQ

Is this a factory-refurbished unit or dealer-refurbished?
This API 4000 system has undergone comprehensive refurbishment by an authorized SCIEX service partner, including full mechanical inspection, vacuum integrity verification, ion optic cleaning and alignment, detector gain calibration, and firmware/software reinstallation.
What documentation accompanies the instrument?
Each unit ships with a detailed refurbishment certificate, post-service performance verification report (including sensitivity, mass accuracy, and resolution benchmarks), original operation manuals (digital), and a 1-year parts-and-labor warranty.
Can the system be validated for GLP or GMP use?
Yes—the platform supports IQ/OQ/PQ protocols when implemented with documented procedures, calibrated reference standards, and qualified personnel. We provide vendor-agnostic validation support packages upon request.
Is Analyst® software included with licensing?
A perpetual license for Analyst® v1.6.3 is supplied with the system; upgrade paths to newer versions (e.g., Analyst® TF) are available through SCIEX direct or authorized resellers.
Are consumables and spare parts still available?
All critical consumables—including TurboIonSpray® probes, ESI needles, APCI vaporizers, collision cell components, and detector assemblies—remain in active production or are available through SCIEX’s extended support channel.