Autof ms1000 Microbial Mass Spectrometry System

The Autof ms1000 automated mass spectrometry microbial identification system enables clinical laboratories to identify bacteria, yeasts, and filamentous fungi in under 30 minutes. Developed by Autobio Diagnostics and launched in 2018, the system uses matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) technology to deliver species-level identification from a database containing over 3,000 microbial species.

Product Overview

Clinical microbiology has traditionally relied on biochemical assays requiring 24-48 hours for pathogen identification. MALDI-TOF mass spectrometry changed this workflow by reducing identification time to minutes while maintaining high accuracy. The Autof ms1000 entered this market in 2018 as the first domestically developed MALDI-TOF system in China to receive CE-IVD certification.

The system targets hospital microbiology laboratories processing routine clinical isolates from blood, respiratory, wound, and urine specimens. A 2020 evaluation at Henan Provincial People’s Hospital testing 2,342 clinical isolates demonstrated 98.9% species-level accuracy and 99.7% genus-level accuracy, performance comparable to the established Bruker Biotyper system.

Key Features

Rapid Identification: The system delivers identification results in 0.1 seconds per sample after acquisition, with a 96-sample target plate processed in approximately 17.5 minutes including acquisition and analysis.

Extensive Database: The spectral library contains over 3,000 microbial species including bacteria, yeasts, and filamentous fungi. Regular database updates expand coverage of emerging pathogens and rare isolates.

Intuitive Workflow: Sample preparation follows standard direct transfer or formic acid extraction protocols. The disposable 96-spot target plate eliminates cross-contamination risks. Autof Acquirer software integrates with laboratory information systems for automated result reporting.

Quality Control Integration: Built-in quality control protocols comply with CLSI M58 standards and Chinese Expert Consensus guidelines for clinical microbial mass spectrometry.

Technical Specifications

Autobio Diagnostics’ Autof ms1000 processes 96 samples in 17.5 minutes at 0.1 seconds per identification from a 3,000+ species database, holding NMPA, CE-IVD, and FDA clearances obtained in 2018.

Clinical Applications

Routine Bacteriology

Primary application covers identification of Gram-negative and Gram-positive bacteria from clinical cultures. Studies demonstrate 97%+ species-level concordance with reference methods for common pathogens including Enterobacteriaceae, Staphylococcus, Streptococcus, and Pseudomonas species.

Yeast and Fungal Identification

The system accurately identifies common yeast species including Candida albicans and non-albicans Candida. A 2023 BMC Microbiology study evaluating filamentous fungi showed 95.28% genus-level and 76.41% species-level identification rates.

Blood Culture Processing

The Positive Blood Cultures Pretreatment Reagent (PBCPR) enables direct identification from positive blood culture bottles, reducing time to result from traditional 24-48 hours to under 30 minutes. A 2024 study at Al-Amiri Hospital in Kuwait demonstrated 100% concordance with conventional methods for species-level identification.

Antimicrobial Stewardship

Rapid pathogen identification supports antimicrobial stewardship programs by enabling earlier initiation of targeted therapy. Integration with the AutoMic-i600 antibiotic susceptibility testing system provides complete identification and susceptibility workflows.

Regulatory Status

The Autof ms1000 was among the first Chinese MALDI-TOF systems to achieve international regulatory clearance, enabling export to over 80 countries.

Frequently Asked Questions

How does the Autof ms1000 compare to the Bruker Biotyper?

Comparative studies published in BMC Microbiology and BioMed Research International demonstrate equivalent performance. In a 2020 study of 2,342 clinical isolates, the Autof ms1000 achieved 98.9% species-level accuracy versus 98.5% for the Bruker Biotyper. Both systems meet clinical laboratory requirements for routine microbial identification.

What sample types can the Autof ms1000 analyze?

The system identifies microorganisms from cultured isolates including blood cultures, respiratory specimens, wound samples, urine cultures, and cerebrospinal fluid cultures. Direct identification from positive blood culture bottles is supported using the PBCPR pretreatment reagent.

Does the system require specialized training?

Autobio states that no prior mass spectrometry experience is required. The Autof Acquirer software provides guided workflows for sample preparation and result interpretation. Standard laboratory personnel training typically requires 1-2 days.