Drawell Atomic Absorption Spectrophotometer DW-220A/B

Drawell Atomic Absorption Spectrophotometer DW-220A/B

Product overview

DW-220A/B Atomic Absorption Spectrophotometer is designed for reliable elemental analysis with a 190–900 nm wavelength range, 8-lamp automatic turret, Czerny-Turner monochromator, Hamamatsu PMT detector and dual background correction. DW-220A supports both flame and graphite furnace analysis, while DW-220B is optimized for routine flame AAS testing.

The Drawell Atomic Absorption Spectrophotometer DW-220A/B supports research, pharmaceutical, environmental, food, industrial, and quality-control laboratories. Scientific China provides model selection, configuration review, export coordination, and formal quotations.

Key features

• 8-Lamp Automatic Turret : Fully automatic 8-lamp turret supports 1 lamp working + 7 lamps preheating simultaneously , improving multi-element analysis efficiency.
• Stable Optical System : Aberration-corrected Czerny-Turner monochromator with a high-performance Hamamatsu PMT detector ensures stable optical performance and reliable detection.
• Precise Flame Gas Control : High-precision mass flow controllers accurately regulate fuel gas flow, while the modular gas supply system improves operational stability and safety.
• Extended Flame Linear Range : Interchangeable emission burner is suitable for easily ionized elements such as K and Na , providing a linear range up to 3× wider than a conventional flame .
• Flexible Graphite Furnace Control : Supports optical control and constant-voltage control for graphite furnace analysis, allowing optimization according to different elements and graphite tubes.
• One-Click Method Optimization : Automatic optimization of analytical conditions plus an expert method database simplifies method setup and routine operation.
• Chemical-Resistant Spray Chamber : Molded PPS spray chamber offers high chemical and thermal resistance, suitable for strong-acid and demanding sample environments.
• Multi-Level Safety & Reliable Communication : Lamp-current monitoring, safety interlocks, graphite furnace temperature protection and dual circuit breakers improve operational safety, while bus-based communication enhances anti-interference and data transmission reliability .
• Used for trace Hg, As and other supported elements in drinking water, groundwater, river water, wastewater and environmental water samples.
• Suitable for trace-element monitoring in food, agricultural products and food-safety laboratories.
• Used for trace-element determination in agricultural and environmental samples after appropriate sample preparation.
• Supports quality-control testing of trace elements in pharmaceutical, herbal and cosmetic materials.
• Suitable for geological survey and metallurgical laboratories requiring trace analysis of supported elements.
• Suitable for trace-element analysis of properly prepared biological and laboratory research samples.

Applications

• Quantitative or qualitative laboratory analysis
• Research, method development, and routine quality control
• Application-specific testing with suitable accessories and methods

Technical specifications

Ordering and configuration

Final specifications, included accessories, consumables, software, certifications, power requirements, installation, warranty, and regulatory availability depend on the selected model and destination. Contact Scientific China to confirm the suitable configuration, minimum order quantity, price, lead time, documentation, and international delivery terms before purchase.