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手持式合金分析仪 合金分析仪 Hand- held spectrometer

Gas Chromatograph GC

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Professional PoHS Directive Testing Services

Release date: 2016/6/30 11:13:19 Click times: 33406
I. Introduction to the PoHS Directive
It is understood that the Norwegian Ban on Certain Hazardous Substances in Consumer Products (PoHS) ban is about to be implemented.
Norway requires that a ban on the use of certain hazardous substances in consumer products (PoHS: Prohibition on Certain Hazardous Substances in Consumer Products) is proposed to be approved on December 15, 2007, with effect from January 1, 2008.
The PoHS name is not only similar in appearance to the EU RoHS directive, no doubt, this ban will be abbreviated as PoHS for everyone to quote. Although the legislation applies only to Norway, it may become a fact similar to the use of electrical and electronic products exported to Europe RoHS standards, because very few companies will produce a targeted product for a single market. Unless you do not intend to sell the product to Norway.
This new standard covers more than RoHS. It covers almost all consumer products (with a few exceptions). It includes product categories in addition to electrical and electronic consumer goods, but also clothing, luggage, construction, toys, etc. This regulation does not apply For food, food packaging, fertilizers, medical equipment and cigarettes, as well as transportation vehicles, fixtures, tires and similar transportation accessories.
The new regulation proposes to limit 18 substances, of which only 2 (lead and cadmium) are included in the EU RoHS directive, and another 16 substances are prohibited. The 18 substances are listed below:
1.HBCDD: hexabromocyclododecane
TBBPA: Tetrabromobisphenol A
3.C14-C17 MCCP: 14-17 chlorinated paraffin
4.As: Arsenic and its compounds
5.Pb: lead and its compounds
6.Cd: Cadmium and its compounds
7.TBT: Tributyltin
8.TPT: Triphenyltin
9.DEHP: Dihexyl phthalate
10.Pentachlorphenol: Pentachlorophenol
11, musk xylene: musk xylene
12, musk ketone: keto musk
13.DTDMAC: bis (hydrogenated tallow alkyl) dimethylamine chloride
14.DODMAC / DSDMAC: distearyldimethylamine chloride
15, DHTDMAC: Di (hardened tallow) dimethylamine chloride
16.Bisphenol A (BPA): Bisphenol A, which is diphenol propane
17.PFOA: ammonium perfluorooctanoate
18.Triclosan: triclosan, which is trichlorohydroxydiphenyl ether
Since the implementation of the EU RoHS Directive, Skyray has maintained technological innovation in the analytical instrument industry and developed in innovation, providing many companies with solutions to achieve green production. According to the requirements of the PoHS Directive, the plasma emission spectrometer (ICP) and gas phase (GC) and liquid phase (LC) chromatographic systems developed by Skyray Instrument can fully meet these substance detection requirements.
Details of testing equipment
Model: ICP 2000
Instrument introduction
It can measure about 70 kinds of elements from trace to constant in various substances. It can be used in scientific research institutes and industries such as geology, metallurgy, rare earth materials, electroplating, cement, petroleum, chemical industry, environmental monitoring, non-ferrous metals, medical health, food, agriculture, etc. Widely used in enterprises.
Performance characteristics
Multi-element simultaneous determination
Low detection limit: can reach 0.1-10ppb, or even lower
Wide linear range of concentration analysis, up to 5-6 orders of magnitude
Less chemical interference, high accuracy, RSD≤2%
Fast analysis speed and low analysis cost
Technical index
Technical specifications of RF generator:
1. Circuit type: Inductive feedback type self-excited oscillation circuit, coaxial cable output, matching tuning, power feedback closed loop automatic control.
2. Working frequency: 40MHz ± 0.05%
3. Frequency stability: <0.1%
4. Output power: 800W—1200W
5. Output power stability: <0.3%
6. Radiation intensity of electromagnetic field leakage: electric field intensity E at a distance of 30cm from the case: <2V / m
HF Box
This device uses an inductive feedback self-excited oscillation circuit, coaxial cable output, matching tuning, and closed-loop automatic control using power feedback (obtained a national invention patent).
The plasma flame is extremely stable. The generator can work with industrial argon, which not only ignites the ICP flame easily, but also saves the expensive cost of using high-purity argon.
Matching box
The matching box with excellent performance composed of vacuum ceramic tunable capacitors and air tunable capacitors can achieve the best matching state and obtain the maximum effective output power on the load coil.
Directional coupler
The power control is to control the anode voltage of the oscillating tube after the power signal is taken out from the directional coupler and amplified by detection, so as to achieve the purpose of stable power output.
Technical parameters of the sampling device:
Output working coil inner diameter 25mm, 3 turns
Rectangular tube: three concentric quartz rectangular tube with an outer diameter of 20mm
Coaxial sprayer outer diameter 6mm
Double cylindrical fog outdoor diameter 34mm
Argon flowmeter specifications and carrier gas pressure gauge specifications:
①. Plasma gas flow meter (100-1000) L / h (1.6-16L / min)
②. Auxiliary gas flow meter (10-100) L / h (0.16-1.66L / min)
③. Carrier gas flow meter (10-100) L / h (0.16-1.66L / min)
④. Carrier gas pressure regulator (0-0.4MPa)
⑤. Cooling water: water temperature: 15-25 ℃, flow rate> 5L / min, water pressure> 0.1MPa, resistivity> 1MΩ
Beamsplitter Technical Index
1. Light path: Czerny-Turner
2. Focal length: 1000 mm
3. Grating specifications: Ion-etched holographic grating, engraved line density 3600 lines / mm, engraved area (80 × 110) mm
(Optional reticle density 2400 lines / mm, reticle area: 80 × 110mm
4. Linear dispersion rate reciprocal: 0.26nm / mm
5. Resolution: ≤ 0.008nm
6. Scanning wavelength range:
3600 line / mm scanning wavelength range: 195-500 nm
2400 line / mm scanning wavelength range: 195-800 nm
7. Stepping motor stepping: 0.0006 nm
8. Exit and entrance slit: 20μm
9. Mirror specifications: (78 × 105 × 16) mm
10. Lens φ30, 1: 1 imaging
11. Beam splitter thermostat: 32 ℃ ± 1 ℃
Application area
Petrochemical
Ore Analysis
Metal smelting
Geological research
Drug safety
Experimental Study
environmental test
food safety
Model: GC5400
Instrument introduction
This GC-5400 intelligent gas chromatograph created by Tianrui Instrument Co., Ltd. integrates many years of gas chromatograph manufacturing experience and advanced modern manufacturing technology. It adopts production management concepts and process quality control procedures in accordance with international standards to ensure GC5400 The intelligent gas chromatograph has world-class performance and quality. The advanced GC-5400 intelligent gas chromatograph system has the characteristics of excellent performance, complete functions, easy operation, and remote controllability.
Performance characteristics
Advanced microcomputer system, excellent control function
Microcomputer temperature control system with excellent performance, using international advanced control technology, high temperature control accuracy (higher than ± 0.05 ℃), high reliability, strong anti-interference ability; with 5 independent temperature control zones, the highest control temperature reaches 400 ° C; Limit temperature setting and over-temperature protection function to ensure the safe operation of the instrument. All Chinese keyboard sets various control and use parameters (including detector operating parameters), which is logical and easy to operate; it has self-diagnosis, power failure protection, 10 methods of file storage and recall, 2 external event control, Temperature control timing start and close, time program, detector setting, range, polarity and current setting and display functions can accurately display the temperature control set value, actual value, retention and analysis time, etc.
High-performance large-capacity oven
The large-capacity oven can be easily installed and can accommodate both capillary columns and double-packed columns; the oven has a rapid heating and rapid cooling that automatically opens the door (from 350 degrees to 50 degrees within 7 minutes), and can achieve quasi room temperature control The oven program heats up 5 stages and 6 platforms.
High-precision double stable gas path
Carrier gas flow path adopts dual stable design of pressure regulator valve and stabilizing valve; air and hydrogen flow path adopts pressure regulating valve and needle valve for stable adjustment mode. Both the flow regulating valve and needle valve adopt digital scale knobs with high accuracy , Good repeatability, high reliability and convenient and intuitive flow adjustment.
High sensitivity and high stability detector
The instrument can be installed with up to three detectors, such as FID, TCD, ECD detectors. Different combinations are used according to different analysis applications, which can conveniently realize the series and parallel operation of the detector.
The new FID has a lower detection limit, which can easily disassemble and clean the nozzle and ion collector, and the precise and fixed emitter installation structure ensures that the performance of each instrument is highly consistent.
High-sensitivity TCD adopts high resistance thoriated tungsten wire, and can be equipped with 2 times electronic amplification circuit board. The sensitivity can reach 5000mV? ML / mg. The unique air insulation structure makes TCD have higher stability.
Modulated pulsed ECD constant current source, microcomputerized for sensitivity and current selection
Technical indicators:
temperature control
Temperature control range
7-400 ° C at room temperature (1 ° C increment)
Temperature control object
Oven, detector, thermal conductivity cell, sampler, auxiliary
Model: LC310
Performance characteristics
LC-310 PLUS high pressure constant flow pump you can trust
Reciprocating double plunger parallel pump controlled by microprocessor intelligent control, which has the characteristics of high working pressure value, small pulsation, stable and reliable, convenient operation, etc.
In the case of infusion, the life of the piston rod and seal ring is twice as long as that of the conventional tandem pump under the same infusion volume.
The mechanical components of the pump are computer-aided design. All major parts are manufactured in the world's advanced CNC machining centers. So the extraordinary machining accuracy and every
The pumps have undergone rigorous pressure resistance tests, so that the pump will never leak, so you can use it with confidence.
With process detection function. The microprocessor controls the pump flow and detects the infusion pressure in real time. In case of pressure overrun, it will alarm and stop the pump operation automatically.
LC-P310 with post-column cleaning function When using a buffered salt for mobile phase analysis, if the pump is not cleaned in time, it will cause salt accumulation behind the column and cause mechanical wear. A pump with a post-column cleaning function solves this problem better. The design of double seals can delay the wear of seals and prolong the service life.
High-sensitivity programmable LC-310 PLUS UV detector
The first digital switching system in China, the detector directly outputs digital signals to the WS1000 workstation, which avoids the need for multiple modulus of chromatographic signals of general UV detectors.
Signal distortion and interference caused by conversion.

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手持式合金分析仪 合金分析仪 Hand- held spectrometer