EXPEC 5700

Overview

EXPEC 5700 LC-MS/MS is a new generation revolutionary product in the high-performance liquid chromatography-triple quadrupole mass spectrometer series developed by EXPEC Technology. The instrument adopts a number of new technologies such as innovative HE-S high-performance ion source, efficient Tri-Step Scan ion transport system, next-generation RF drive circuit technology and 90° off-axis detector, which bring excellent performance and trustworthy reliability to EXPEC 5700 LC-MS/MS.

The EXPEC 5700 LC-MS/MS is extensively utilized in clinical medicine, forensic toxicology, new drug research and development, food safety, environmental health, and other fields that demand high sensitivity. It fully meets the needs of universities and research institutes for advanced scientific research data, facilitating scientific inquiry and methodological exploration.

Features

Next-generation Liquid Chromatography-Triple Quadrupole

Mass Spectrometer

·Ultra-high performance liquid chromatography system
·High-performance chromatographic column oven
·Next-generation bi-orthogonal HE-Spray ion source
·Tri-Step Scan ion transport system
·Intelligent flow path switching·Ultra-high performance liquid chromatography system
·Perfect instrument control system

Stable and high-performance mass spectrometry system

·Next-generation bi-orthogonal HE-Spray ion source

·Ultra-efficient anti-pollution ionic interface

·Tri-Step Scan ion transport system

Stable and User-Friendly Functional Unit

·Vacuum system

·High-stability quadrupole mass analyzer

·New-generation axial accelerating collision cell

·Integrated post-column switch valve

·One-click automatic tuning

Friendly Mass Expert analysis workstation

·Friendly Mass Expert analysis workstation

·Customizable application analysis software

·Easy-to-use control software

·Intelligent parameter optimization

Automatic and accurate liquid phase system

·High-precision high-pressure mixing binary pump

·Multi-functional autosampler

·High-performance chromatographic column oven

Specifications and Parameters

Parameter	Specification
WORKING ENVIRONMENT
Temperature	18–25 °C
Humidity	20–60% RH
Power Supply	five single-phase (220±20)V AC, 10A, 50 Hz power supplies
LIQUID CHROMATOGRAPH — SUPERHIGH PRESSURE GRADIENT PUMP
Mobile Phase Selection	Any 2 solutions from A, B, C, D via solvent selection valve
Vacuum Degasser	Built-in; separate degassing for each pump (A/B)
Flow Range	1–2,000 μL/min in 1.0 μL/min increments
Maximum Pressure	≥18,850 psi
Flow Rate Accuracy	≤1%
Flow Rate Precision	≤0.075% RSD
Delay Volume	<100 μL (with mixer)
Gradient Mode	Linear, concave, convex
Gradient Range	0–100%
Gradient Precision	≤0.15% RSD
Gradient Accuracy	±0.5% absolute value, 5%–95%
LIQUID CHROMATOGRAPH — AUTOMATIC SAMPLER
Injection Modes	Full-quantitative loop, semi-quantitative loop injection, microliter injection
Injection Repeatability	0.3% RSD
Maximum Sample Capacity	≥ 96 bit 2 mL sample bottle
Injection Range	1–20 μL
Residue	<0.01%
Sample Cooling (Optional)	Minimum 4°C ± 2°C
LIQUID CHROMATOGRAPH — COLUMN OVEN
Temperature Control Range	Room temperature +5 °C to 90 °C
Temperature Control Mode	Mobile phase preheating + forced air circulation
Temperature Stability	±0.1 °C
Temperature Reproducibility	±0.1 °C
Column Capacity	Standard single-column version; optional multi-column version
MASS SPECTROMETRY — ESI ION SOURCE
Spray Design	Orthogonal vertical spray; strong anti-pollution ability, low background noise
Ion Source Gas Supply	1 way atomization gas + 2 way orthogonal desolvation gas; software-controlled flow rate
Auxiliary Heating Gas Temperature	≥750 °C; software-controllable
Ion Source Types	Independent ESI and APCI sources
Desolvation Heating Element	Quartz material for long service life
Exhaust Gas Device	Special exhaust device prevents gas backflow, reduces memory effect and pump oil contamination
VACUUM INTERFACE & ION TRANSPORT SYSTEM
Interface Design	Tapered hole design
Back Blowing Design	Reduces introduction of neutral molecules
Back Blowing Airflow Rate	≥30 L/min (high temperature)
Interface Temperature	≥110 °C; improves anti-pollution ability
Maintenance	No need to remove vacuum; daily maintenance completable in minutes
Ion Transport Rods	≥3 sections between ion source and first mass analyzer
Vacuum Design	4-stage differential vacuum; multiple quadrupole transmission for precise ion focusing
MASS ANALYSIS SYSTEM (TRIPLE QUADRUPOLE)
Analyzer Type	Triple quadrupole mass analyzer
Quadrupole Material	High-precision Mo material; gold-plated surface for anti-pollution
Q1 Pre-bars	Front and rear pre-bars to prevent mass discrimination effect
Q2 Pre-stem	Front pre-stem to improve ion transport efficiency
Collision Cell	Linear collision cell; reduces cleaning frequency
Collision Gas	High-purity nitrogen
Sensitivity — ESI+, MRM	S/N ≥3,000,000:1 (1 pg reserpine, column injection)
Sensitivity — ESI−, MRM	S/N ≥3,000,000:1 (1 pg chloramphenicol, column injection)
Quantitative Reproducibility	Reserpine 0.1 ng/mL, 10 μL, 6 replicates: RSD ≤5%; Chloramphenicol 0.1 ng/mL, 10 μL, 6 replicates: RSD ≤5%
Quadrupole Resolution	0.4–3.0 amu adjustable
Mass Number Range	5–2,000 amu
Mass Stability	≤0.1 amu / 24h
Scanning Speed	≥30,000 amu/s
Minimum Scan Step	0.02 amu
Dynamic Range	6 orders of magnitude
Minimum Dwell Time	1 ms
MRM Channel Speed	500 MRM/s
Polarity Switching Speed	±5 ms
Scan Modes	Full Scan, SIM, SIR, Product Ion Scan, Precursor Ion Scan, Neutral Loss Scan, MRM, PISA, positive/negative fast switching
DETECTOR
Type	Electron multiplier tube; no positive/negative ion discrimination; long service life
Counting Mode	Pulse counting; ensures reproducibility at low concentration limits
VACUUM SYSTEM
Configuration	Mechanical pump + turbomolecular pump; differential pumping; auto power-off protection
Number of Mechanical Pumps	≥2 (large pumping speed)
Mechanical Pump Speed	70 m³/h + 120 m³/h
Turbomolecular Pump Speed	50/300/400 L/s
WORKSTATION SOFTWARE
OS Compatibility	Windows 7 and above
Core Functions	LC & MS control; data processing; report editing; auto quantitation; spectrum library search
Calibration & Monitoring	Automatic calibration and instrument status monitoring
Offline Analysis	LC-MS software installable on separate PC for offline data processing and reporting
ACCESSORY SYSTEM
Computer	Mainstream brand; >4 GB memory; 1 TB hard disk
UPS	10 KVA; ensures 2h instrument operation
Laser Printer	Black and white laser printer
Nitrogen Generator	Max. flow rate: 24 L/min; max. pressure: 116 psi
High-Purity Nitrogen	1 bottle of high-purity nitrogen (including gas pressure reducing valve)
TECHNICAL SERVICE
Warranty Period	12 months from the date of acceptance
Fault Response Time	Within 4 hours after receiving fault notice (includingremote service, telephone service, on-site troubleshooting, etc.)
Maintenance Plan	Determined within 24 hours; maintenance completed within 48 hours
Post-Warranty Service	Lifelong maintenance service provided
Installation & Training	Supplier provides on-site installation, commissioning, and free operator training
Delivery	User-specified location