主要规格及技术指标

TechnicalSpecification:
1. Liquid samples: Max. Volumne: 1500ul
Solid samples: Max. Sample weight: 1500mg
2. Mercury detection system: double beam spectrophotometer with sequential
flow through of measurement cells.
3. Light source: low pressure mercury vapor lamp
4. Wavelengh: 253.65nm. Interfenrence filter: 254nm, 9mm bandwidth
5. Detector: double silicon UV photodetector
6. Detection limit: 0.0005ng Hg
7. Working range: ( with automatic swith-over)
Low range: 0-20ng Hg
High range: 20-1800ng Hg
8. Reproducigility: <1.0%@1ng
9. Analysis time: approx. 5 minutes per sample
10. Calibration: performed with Std. Ref Materials liquid or solid
11. Carrier gas: Oxygen, 4 bar (60 psig) with~200ml/min flow rate
12. Autosampler: 40 positions, built-in, for solids and liquids
技术规格：

1. 液体样品：最大体积：1500μl
固体样品：最大样品重量：1500mg
2. 汞检测系统：双光束分光光度计，测量池顺序流通
3. 光源：低压汞蒸气灯
4. 波长：253.65nm。干扰滤光片：254nm，带宽9mm
5. 检测器：双硅紫外光检测器
6. 检测限：0.0005ng Hg
7. 工作范围：（带自动切换）
低范围：0-20ng Hg
高范围：20-1800ng Hg
8. 重现性：<1.0%@1ng
9. 分析时间：每个样品约5分钟
10. 校准：使用标准参考材料进行液体或固体校准
11. 载气：氧气，4 bar（60 psig），流速约200ml/min
12. 自动进样器：40个位置，内置，适用于固体和液体

主要功能及特色

Features and application:The DMA-80 mercury determination system can analyze any matrix (solid, liquid or gas) without any pre-treatment or chemical additions in as few as 6 minutes in full compliance with EPA method 7473. The DMA-80 evo double beam dramatically reduces the signal-to-noise ratio, which greatly improves the quantification limit, enabling accurate and precise mercury determination even at the ppt level. With thousands of units installed, Milestone defines the benchmark for direct mercury determination a wide range of industries: environmental, food energy, cement, cosmetics, agriculture, mining and petrochemical. DMA-80 evo直接测汞仪采用催化热解-金齐化-冷原子吸收原理，DMA-80汞测定系统可在6分钟内分析任何基质(固体、液体或气体)，无需任何预处理或化学添加，完全符合EPA 7473方法。DMA-80 evo双光束显著降低了信噪比，从而大大提高了量化极限，即使在ppt级别也能实现准确和精确的汞测定。 广泛用于食品能源，水泥，化妆品，农业，采矿和石化等领域。

主要附件及配置

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