JASCO V-700 Series UV-Vis-NIR Spectrophotometer

Overview

The JASCO V-700 Series UV-Vis-NIR spectrophotometer is a high-performance double-beam optical instrument engineered for precision absorbance, transmittance, and reflectance measurements across an exceptionally broad spectral range—from deep ultraviolet (190 nm) to near-infrared (up to 3200 nm). Leveraging over six decades of JASCO’s expertise in spectroscopic instrumentation design, the V-700 platform implements advanced optical architecture including dual monochromators (in V-770/V-780 models), high-stability deuterium and tungsten-halogen light sources with automatic lamp switching and real-time intensity calibration, and a low-noise photomultiplier tube (PMT) detector optimized for signal-to-noise ratio across UV-Vis regions. Its double-beam configuration continuously compensates for source drift and environmental fluctuations, ensuring high reproducibility in kinetic studies, quantitative assays, and long-duration spectral acquisitions. The system supports rigorous regulatory compliance requirements through optional 21 CFR Part 11–enabled software and audit-trail-capable operation—making it suitable for GLP/GMP environments in pharmaceutical, biotechnology, and quality control laboratories.

Key Features

• Ultra-broad wavelength coverage (190–3200 nm), configurable per model (V-730: 190–1100 nm; V-750/V-760: up to 900 nm; V-770: up to 2700/3200 nm; V-780: up to 1600 nm)
• Variable spectral bandwidth selection (0.1–10 nm), including Low-Stray-Light (L2/L5/L10) and Micro-cell (M1/M2) modes for enhanced measurement fidelity under demanding sample conditions
• Automatic lamp alignment and intensity correction during source exchange, minimizing manual recalibration interventions
• Integrated dark-current compensation algorithm for accurate quantification of highly absorbing samples (e.g., concentrated dyes, biological macromolecules)
• IQ (Intelligent Quick) accessories interface: auto-detection of installed accessories—including cell holders, temperature controllers, integrating spheres, and specular reflectance modules—with automatic loading of preconfigured measurement protocols
• High-resolution A/D conversion enabling wide dynamic range (>3.5 AU) and linear response across four orders of magnitude in absorbance
• Compact, space-efficient chassis design without compromise to optical path stability or thermal management performance

Sample Compatibility & Compliance

The V-700 series accommodates diverse sample formats via over 70 dedicated accessories, including standard 10-mm cuvette holders, microvolume cells (down to 0.5 µL), Peltier-controlled temperature stages (–10 °C to +100 °C), diffuse reflectance integrating spheres (with BaSO₄-coated interior), and absolute reflectance measurement kits compliant with ASTM E1331 and ISO 13468 standards. Routine verification is supported by built-in holmium oxide glass reference filters for daily wavelength accuracy checks, traceable to NIST standards. For regulated industries, the Spectra Manager CFR Edition provides full 21 CFR Part 11 compliance—including electronic signatures, role-based user access control, immutable audit trails, and secure data encryption—validated for use in FDA-submitted analytical methods and internal QC documentation systems.

Software & Data Management

Spectra Manager™ software serves as the unified control and analysis environment for all V-700 models. It supports four primary acquisition modes: spectrum scanning, quantitative analysis (single/multi-wavelength, standard curve generation), time-course kinetics, and fixed-wavelength monitoring. Post-acquisition processing includes peak detection, baseline correction (asymmetric, polynomial, rolling ball), spectral subtraction, smoothing (Savitzky-Golay), axis transformation (log, derivative, ratio), and spectral difference mapping. Data export is compatible with CSV, ASCII, JCAMP-DX, and proprietary .SPM formats. The CFR Edition extends functionality with electronic signature workflows, automated report generation with embedded metadata (operator ID, timestamp, instrument ID, method version), and secure database archiving with tamper-evident hashing.

Applications

The V-700 series delivers robust performance across academic, industrial, and clinical settings. In pharmaceutical development, it supports dissolution testing, excipient compatibility screening, and UV-based assay validation per USP . In life sciences, it enables nucleic acid quantification (A260/A280 ratios), protein secondary structure analysis via second-derivative spectra, and enzyme kinetics monitoring at physiological temperatures. Materials science applications include thin-film thickness determination via interference fringe analysis, bandgap estimation of semiconductors, and colorimetric characterization of pigments and coatings. Environmental labs utilize its NIR extension (V-770) for rapid soil organic carbon assessment and water quality parameter estimation (e.g., COD, TOC surrogates).

FAQ

What is the maximum wavelength range supported by the V-770 model?

The V-770 supports 190–2700 nm as standard, with optional extended-range optics enabling operation up to 3200 nm.
Does the system support automated compliance reporting for ISO/IEC 17025 accreditation?

Yes—when configured with Spectra Manager CFR and validated SOPs, the system generates compliant records including instrument qualification reports, calibration logs, and raw-data integrity summaries required for ISO/IEC 17025 audits.
Can the V-700 series perform reflectance measurements on opaque solid samples?

Yes—using the optional 60-mm integrating sphere with diffuse illumination geometry, the system measures total reflectance (diffuse + specular) and absolute reflectance in accordance with ASTM E1331 and ISO 13468-1.
Is remote operation possible via network interface?

All V-700 models include Ethernet connectivity and support TCP/IP-based remote control through Spectra Manager, enabling centralized lab management and integration into LIMS environments.
How frequently must the holmium oxide filter be replaced for routine verification?

NIST-traceable holmium oxide filters are stable for ≥5 years under proper storage; JASCO recommends annual verification against certified reference materials and replacement only upon documented deviation exceeding ±0.1 nm wavelength error.