主要规格及技术指标

The liquid chromatography system and vapor generation digestion system adopt a modular design, facilitating later maintenance and upgrades.

Delivery system: Dual-piston high-pressure binary gradient pump
Equipped with a dual-column switching valve for fully automatic column switching.
Equipped with a front-mounted large-volume dual-column temperature control chamber that can accommodate two columns simultaneously, with a temperature control range of 30℃-80℃.
Vapor generation device for morphological analysis:

Fully automatic total amount/morphology switching function
Fully automatic UV/non-UV pipeline switching function
Fully automatic switching of UV digestion lamp
The mixed sequence setting ensures that multiple detection requirements are met simultaneously, and can automatically clean, turn off lights, extinguish flames, and stop the instrument after detection, achieving true automation.
Fully integrated UV digestion unit that can completely digest various arsenic and mercury valences without the need for additional oxidants.
Atomic fluorescence spectrometer:

Sample introduction system: Automatic switching of multi-sample systems
Uses a specially designed dual sequential injection pump.
Uses imported PTFE three-way valve and solenoid valve design.
Equipped with automatic standard series configuration function, single standard can automatically prepare standard curves (r > 0.999);
Equipped with online automatic dilution function for high-concentration samples;
160-position polar coordinate automatic sampler, newly designed carbon fiber skeleton PTFE sampling needle, avoiding the fragility of quartz needles and preventing steel needles from damaging the automatic sampler. Also reduces liquid hanging and cross-contamination.
Equipped with large-volume sample introduction method: upgraded tubing package, supports field connection, suitable for trace mercury detection.
Optical system:

Dual-channel, short focal length lens focusing, non-dispersive fully enclosed light-proof dimming system, day-blind photomultiplier tube detection.
Built-in argon-hydrogen flame observation window, which reduces external light interference with the internal optical path of the instrument, enhances the stability of the instrument, and allows real-time observation of the flame state.
Adopts a planar fan-shaped optical system, non-tilted optical system.
Light source:

Intelligent hollow cathode lamp, with built-in storage chip, automatic identification of element types, and supports timing of element lamp usage, allowing for real-time monitoring of lamp information.
The lamp power supply supports dual-channel automatic ignition, improving work efficiency.
Hydride reaction device:

Shielded low-temperature ignition quartz furnace atomizer, effectively overcoming memory effects, reducing fluorescence quenching, and improving instrument stability.
The first-stage gas-liquid separator uses a chemical vapor generation gas-liquid separation device, ensuring sufficient mixing and contact of reactants, resulting in high hydride reaction efficiency.
The second-stage gas-liquid separator uses a semi-sealed gas-liquid separation device with a convenient drainage design, effectively eliminating water vapor.
Liquid phase automatic sampler:

Fully realizes software feedback control
Large-capacity sample tray: standard tray: 2 mL bottles ≥ 96 positions
The volume of the quantitative loop is 100 μL, allowing three sample introduction methods to complete single-point calibration curves
Inductive recognition of sample tray/bottle absence function
Detection indicators:

Total detection limit (DL) for arsenic, antimony, selenium, mercury < 0.01 µg/L; mercury (cold atom) < 0.001 µg/L; measurement precision RSD < 0.8%
Elemental forms:
As As(III) (arsenite) < 0.03 ng
DMA (dimethylarsinate) < 0.06 ng
MMA (monomethylarsinate) < 0.06 ng
As(V) (arsenate) < 0.15 ng
Hg Hg(II) (divalent inorganic mercury) < 0.01 ng
MeHg (methylmercury) < 0.01 ng
EtHg (ethylmercury) < 0.02 ng
Se Se(IV) (selenite) < 0.1 ng
SeCys2 (selenocystine) < 0.3 ng
Se(VI) (selenate) < 0.5 ng
SeMet (selenomethionine) < 2.0 ng
MeSeCys (methylselenocysteine) < 0.5 ng
Sb Sb(III) (antimonite) < 0.3 ng
Sb(V) (antimonate) < 0.5 ng

Main configuration:
AS-90L auto sampler, AFS-11B atomic fluorescence spectrometer, AS-5600 auto sampler, SA-50-LC liquid chromatograph, SA-50—VG vapor generation facility, 10kv UPS.


液相色谱系统和蒸汽发生消解系统采用分体式设计，便于后期使用维护及升级。

输送系统：双柱塞杆高压二元梯度泵 配备双色谱柱切换阀，可全自动切换色谱柱。 配备前置大体积双色谱柱温箱，可以同时放置两根色谱柱，控温范围30℃-80℃。 形态分析蒸气发生装置

全自动的总量/形态切换功能 全自动的紫外/非紫外管路切换功能 全自动开关紫外消解灯 混合序列的设置，可保证多种检测需求同时满足，并能做到检测结束后自动清洗、关灯、关火、仪器停止运行等，做到真正的自动化。 全内置紫外消解单元，可100%消解各种砷、汞的价态，无需再加氧化剂。 原子荧光光度计

进样系统：多进样系统自动切换 采用特制双顺序注射泵。 采用进口聚四氟乙烯材质三位阀与电磁阀设计。 具备自动配置标准系列功能，单标准自动配制标准曲线（r＞0.999）； 具备在线高浓度样品自动稀释功能； 160位极坐标式自动进样器，全新设计的碳纤维骨架PTFE取样针，避免石英针易碎问题，避免钢针扎坏自动进样器。同时减少挂液，减交叉污染。 具备大体积进样方式：升级管路包，支持现场连接，适用于痕量汞的检测。 光学系统：

双通道，短焦距透镜聚光，无色散全密闭避光调光系统，日盲型光电倍增管检测。 内置式氩氢火焰观察窗，既减少了外界光线干扰仪器内部光路，提高了仪器的稳定性，又可直接对火焰状态实时进行观察。 采用平面扇形光学系统，非倾斜式光学系统。 光源：

智能空心阴极灯，内置存储芯片，元素类型自动识别，且支持元素灯使用计时，随时掌握灯信息。 灯电源支持双道自动激发启辉，提高工作效率。 氢化物反应装置：

屏蔽式低温点火石英炉原子化器，有效克服记忆现象的发生，减小荧光淬灭，提高仪器稳定性。 一级气液分离器采用化学气相发生气液分离装置，反应物充分混合接触，氢化反应效率高。 二级气液分离器采用半密封气液分离装置，便捷排水设计，有效消除水蒸气。 液相自动进样器

全面实现软件反控 大容量样品盘：标准盘：2毫升瓶 ≥96位 定量环体积100μL可实现三种进样方式，完成单点配曲线 感应识别样品盘/瓶缺失功能
检测指标 -总量检出限（DL）砷、锑、硒、汞<0.01µg/L；汞（冷原子）<0.001µg/L；测量精度 RSD<0.8%

元素形态 As As（III）（亚砷酸根离子） <0.03 ng DMA（二甲基砷酸根离子）<0.06 ng MMA（一甲基砷酸根离子）<0.06 ng As（V）（砷酸根离子） <0.15 ng Hg Hg（II）（二价无机汞） <0.01 ng MeHg（甲基汞） <0.01 ng EtHg（乙基汞） <0.02 ng Se Se（IV）(亚硒酸根离子) <0.1 ng SeCys2（硒代胱氨酸） <0.3 ng Se（VI）（硒酸根离子）<0.5 ng SeMet（硒代蛋氨酸） <2.0 ng MeSeCys (甲基硒代半胱氨酸) <0.5 ng Sb Sb（III）（亚锑酸根离子） <0.3 ng Sb（V）（锑酸根离子） <0.5 ng

主要配置： AS-90L自动进样器，AFS-11B原子荧光光度计，AS-5600自动进样器，SA-50-LC形态分析液相色谱仪，SA-50—VG形态分析蒸汽发生装置，10kv稳压电源。

主要功能及特色

Features and application：
It is mainly used in the analysis of trace inorganic elements, widely used in geology., environment, biology, medicine, food and other fields.
AFS-11B atomic fluorescence spectrometer can be used alone to measure the total content of elements（As, Sb, Se, Hg），
LC-AFS liquid chromatography and atomic fluorescence spectrometry can be used together to measure the content of different forms of elements（As, Sb, Se, Hg）.
主要用于痕量无机元素分析， 广泛用用于地质、环境 、生物、医药、食品等领域。AFS-11B原子荧光光度计单独使用，用于检测样品中元素的总含量。LC-AFS液相色谱和原子荧光光度计可以联用，用于检测样品中同一元素不同形态离子的含量。

主要附件及配置

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