Animal feed analyzer RA-915F

soiloilwater

Overview
RA-915F provides accurate, reliable mercury (Hg) measurements by direct thermal decomposition across a broad range of applications. Complex-matrix samples can be analyzed as-is without chemical pre-treatment, reducing time and consumable costs.

Principle of operation
Direct thermal decomposition followed by atomic absorption spectrometry at 254 nm with Zeeman background correction ensures selective, sensitive, interference-free measurements without matrix effects.

Features and benefits

• Fast direct analysis of solids, liquids and biosamples
• Low detection limit and high selectivity due to Zeeman background correction
• Real-time feedback system for sample decomposition control extends dynamic range and eliminates background interferences
• Broad measurement range: more than 5 orders of magnitude
• No sample pretreatment or reagents required, lowering analysis cost
• Safe and simple operation: no compressed gases required (air used as carrier gas)
• No pre-concentration on gold traps, increasing analysis speed and reducing operational complexity
• No memory effect: low-concentration samples can be analyzed immediately after high-concentration samples
• Programmable furnace for optimized sample decomposition and mercury thermospeciation studies
• Compact footprint: suitable for mobile laboratories

Applications
RA-915F is used for direct determination of mercury concentration in:

• Soils, sediments, rocks, ores, minerals
• Food, nutritional additives, animal feed
• Crude oil, oil products, naphtha, petrochemicals
• Biosamples: tissues, hair, urine, blood, etc.
• Wastewaters, wastes, sludge
• Coal, coke, fly ash, gypsum
• Sorbent traps for stack gases and passive air samplers
• Drugs, cosmetics, plastics, fertilizers and many other materials

Standards
The direct thermal decomposition technique complies with standards including ASTM D6722, D7622, EN/TS 17286, US EPA 7473, 30B, PS12B, SN/T 4429.2-2016, HJ 923-2017 and others.

Software
RAPID is the dedicated software for RA-915 analyzers. RAPID complies with FDA 21 CFR Part 11 requirements and provides:

• Data acquisition, processing and reporting
• Real-time visualization of selective and non-selective absorbance
• Databases for calibrations, processing and storage of measurement data
• Adjustable modes for optimal thermal decomposition of specific matrices

Warranty
RA-915F is covered by a full 1-year warranty.

Services
Installation and commissioning are available on request by service engineers or certified distributors. Support and operator training are provided by application specialists to meet customer requirements.

Technical specifications

• Measurement principle: Direct thermal decomposition followed by atomic absorption spectrometry at 254 nm with Zeeman background correction
• Detection limit: 0.5 ppb (µg/kg)
• Measurement range: 0 – 200,000 ppb (µg/kg)
• Sample boat capacity: 1000/2000 mg (solids) and 500/1000 µl (liquids)
• Analysis time: 1 – 5 min
• Analyzer warm-up time, max: 40 min
• Temperature range of atomizer and analytical cell: 150 °C – 800 °C
• Power supply: 100 – 240 VAC, 50 – 60 Hz
• Power consumption, max: 700 W
• Dimensions (WxDxH): spectrometer unit 175×110×235 mm; thermal unit 430×340×135 mm; power supply unit 400×280×135 mm
• Weight: 21.5 kg
• Detection limits by matrix:
  
  • Soils, rocks, sediments: 0.5 ppb (µg/kg)
  • Water and solutions: 0.2 ppb (µg/L)
  • Foodstuff: 0.5 ppb (µg/kg)
  • Biological samples (tissues, blood, hair, etc.): 0.5 ppb (µg/kg)
  • Crude oil, gas condensate: 1 ppb (µg/kg)
  • Naphtha direct: 1 ppb (µg/kg); naphtha preconcentration: 0.05 ppb (µg/kg)
  • Coal: 1 ppb (µg/kg)
  • Sorbent traps for stack gases: 0.5 ng* (range 0.5 - 50,000 ng)