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Introduction
Inductively coupled plasma mass spectrometer ( abbreviated ICP-MS), was developed in the 1980s, a new micro ( 10-6 ) , trace ( 10-9 ) and ultra-trace ( 10-12 ) elemental analysis technology. Most of the periodic table of elements can be determined , very low detection limit , a very wide dynamic range , simple lines , less interference , high precision, fast speed , can provide isotopic analysis .
This product is the first domestic industrial inductively coupled plasma mass spectrometer , the instrument of the performance reached the national standard , to meet the needs of user applications , cost-effective ; the products are mainly used in environmental , food , semiconductor, medical and physiological analysis , nuclear industrial fields.
Features
Injection System: open- injection system architecture, using nebulizer externally mounted , self-positioning, without adjustment .
Torch position adjustment system : full control of the computer x, y, z torch accurate three-dimensional position , all adjustment parameters stored in the analysis. Plasma shielding technology : greatly improved sensitivity , improve the detection limit of the number of elements of low quality , to ppt level
Activities valves: computer control, protection equipment vacuum , easy disassembly and cleaning sampling and skimmer cones work in the vacuum system .
Ion lens system : with a high efficiency hexapole ion guide system , ion transmission efficiency to get the best quality in the whole range of ion focusing automatic tuning process , the vacuum chamber of the lens using asymmetric installation , easy disassembly positioning.
Detector : ETP dual mode detector , without digital / analog switch .
The new vacuum chamber structure : the cavity without any wires , each component asymmetric installation and plug-in installation .
Power protection systems: power outage occurred in the accident , security itself off without damaging the instrument system .
Software: Provides automatic control instruments and their accessories abilities, software encompasses a variety of analytical methods, including special isotope ratio determination and isotope dilution method .
Technical parameters
Quality Quantity Range : 2 ~ 255 amu
Measuring range : ≥108
Sensitivity : Be≥2 × 106; In≥35 × 106; U≥30 × 106 units (cps / mg / L)
The detection limit : Be≤10; In ≤2; U≤2 units (ng / L)
Resolution : 0.6 ~ 0.8 amu
SNR : ≥50 × 106
Background noise : ≤2 cps ( full mass range )
Mass axis stability : ≤0.05 amu / 24 h
Stability RSD: short-term ≤3%; long ≤4%
Oxide ions : CeO + / Ce + ≤3%
Bivalent ions : 69Ba2 + / 138Ba + ≤3%
Isotope ratio : (107Ag / 109Ag) ≤0.3%
Abundance sensitivity : ≤1 × 10-6 low quality end ; ≤5 × 10-7 high mass
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