Automotive Catalyst Analysis SpectrometerComposition and working principle

Environmental testing spectrometerIt is an analytical testing instrument for sequential measurement of multiple elements. The instrument consists of a scanning spectrometer, radio frequency generator, sample introduction system, photoelectric conversion, control system, data processing system, and analysis operation software. Plasma is generated in a triple concentric quartz torch tube. Argon gas is introduced into the torch tube in a tangential direction, and a copper load coil is wound around the upper part of the torch tube with cooling water inside. When the high-frequency generator generates high-frequency current (operating frequency)40MHzpower1.2KWWhen passing through the coil, an alternating magnetic field is generated around it, causing a small amount of argon gas to ionize and produce electrons and ions. Under the action of the magnetic field, it accelerates and collides with other neutral atoms, producing more electrons and ions. Eddy currents are formed inside the torch tube, and under the action of electric sparks, an plasmonic torch (i.e. plasma) is formed. The temperature of this plasma can reach up to10000Kabove. The water solution to be measured forms aerosol through the spray and enters the central channel of the quartz torch tube. Atoms ionize under the influence of external energy, but atoms in an excited state are highly unstable. When transitioning from a higher energy level to the ground state, they release tremendous energy, which is radiated in the form of electromagnetic waves of a certain wavelength. Different elements produce different characteristic spectra. These characteristic spectra are projected onto the grating in the beam splitter through a lens, and the calculation is performed by controlling the stepper motor to rotate the grating,The transmission mechanism accurately determines the intensity of the characteristic spectral lines of the tested element after splitting at the exit slit, and the photomultiplier tube converts the intensity of the spectral lines into current, which is then processed by the circuitV/FAfter conversion, the data is processed by the computer and then the analysis results are printed out by the printer.

IIAutomotive Catalyst Analysis SpectrometerTechnical indicators

1.RF generator（RF）

(1)Circuit type: self-excited oscillation circuit, fully automatic ignition, all functions are controlled by computer software(Parameter settings for ignition, shutdown, power, etc)Real time power control; Automatic matching tuning; Constant temperature in the light chamber;

(2)Working frequency:40.68MHZ±0.05%

(3)Frequency stability:<0.1%

(4)Output power:700－1600w

(5)Output power stability: ≤0.3%

(6)Electromagnetic field leakage radiation intensity: distance from the aircraft body300mmelectric field intensityE:<2V/m

2.Sample injection device:

(1)Output the inner diameter of the working coil25mm，3Turn turns

(2)Torch tube: outer diameter20mmThe quartz torch tube

(3)Outer diameter of coaxial spray6mm

(4)Outer diameter of twin tube fog chamber35mm

(5)Specification of argon flowmeter and carrier gas pressure gauge:

① The Plasma flowmeter（100-1000）L/h；(1.6-16L/min)

② The Auxiliary gas flow meter（6-60）L/h；(0.1-1L/min)

③ The Carrier gas flowmeter（6-60）L/h；(0.1-1L/min)

④ The Carrier gas stabilizing valve（0-0.4MPa）

The instrument is equipped with an argon secondary stabilizing valve（0.3MPa）

3.Metering device:

(1)Specification of photomultiplier tube:R212UH

(2)Negative high voltage of photomultiplier tube:200-1000V, stability<0.05%

(3)Measurement range of photomultiplier tube current:10-12 -10-4A

(4)Signal acquisition isV/FExchange:1mVcorresponding100Hz

4.Spectrophotometer:
(1)light path: Czerny-Turner
(2)focal length: 1000mm
(3)Grating specifications: ion etched holographic grating, engraved line density3600Line/mm，

Marking area: eighty×110mmReciprocal of linear dispersion rate:0.26nm
(4)Wavelength range:190-500nm
(5)resolving power:≤0.008nm
(6)Scanning wavelength range3600Line/mmScanning wavelength range:190-500nm
(7)Stepper motor driven maximum step distance:0.0006nm
(8)Incident slit:20µmExit slit:25µm
(9)Specification of launch mirror: （78 × 105 × 16）mm
(10)Lens ф30，1：1imaging

5.Application Industry Classification

1Metal class

Steel: including carbon steel, cast iron, alloy steel, high-purity iron, ferroalloys, ferrosilicon, manganese iron, vanadium iron, iron Smelting of ores, lead, etc.

2Analysis of Nonferrous Metals:

Analysis of impurity elements in pure copper, pure aluminum, and alloys.

Purity analysis of precious metals:Au、Ag、Pt、Pd、Ir、Rh、Os、Ru.

3Environmental testing category

Water quality analysis: mineral water, tap water, river water, seawater, sewage, wastewater, etc.

Food analysis: including food, beverages, etc.

Soil composition analysis: analysis of biological and plant samples.

4Rare earth materials and rare earth permanent magnets

Rare earth element complete separation, this instrument has high resolution and is very suitable for the analysis of rare earth elements.

Analysis of the distribution and composition of neodymium iron boron materials in rare earth permanent magnet materials.

5Analysis of Geological Minerals

Analysis of selected minerals

Census and Mineral Exploration Analysis

6Food and Pharmaceutical Analysis

Analysis of beneficial and harmful elements in food, and analysis of trace elements in medicinal materials

IIITechnical indicators:

1.Measurement wavelength range:

180-500nm 3600L/mmgrating

180-800nm 2400 L/mmgrating

2.Measurement accuracy (repeatability): average relative standard deviationRSD≤1%

3.Measurement stability: average relative standard deviationRSD≤2

4.Detection limit: SubPPblevel

4Installation conditions for environmental testing spectrometer

1Normal working conditions of the instrument: The laboratory is clean, dry, dust-free, and vibration free. Maintain room temperature by22℃±3℃

2Room:15Approximately one square meter is suitable, equipped with a standard solution reagent cabinet, computer desk, computer chair, and air conditioning1.5—2Pi.

3Power supply:220V，22A, using4Square wires.

4Grounding: For safety and instrument stability, high-frequency grounding is necessary300×300×3mmThe purple copperThe board is buried underground1.5Deep within meters, using width30×0.5mmConnect the copper strip to the chassis of the host.

5Exhaust: It is required to install an exhaust duct above the host, connect an external chimney, and use an exhaust fan toICPWaste after combustionExhaust the air outdoors.

6Argon gas: ordinary argon gas can be used99.99%that will do

5guarantee:

Beijing Zhongye Yiyuan Technology Co., Ltd. will provide12A one month warranty period,Calculated from the date of self signed acceptance, but not exceeding the date of shipment15A month. During the warranty period, Beijing Zhongye Yiyuan Technology Co., Ltd. will provide free maintenance. If the instrument malfunctions or damages are caused by non-human factors of Party A, Party B will be responsible for resolving them free of charge(Excluding consumables)；

six、ICP-AESafter-sale service:

Upon receiving a written notice from the user requesting maintenance3During the time, the technical personnel of Beijing Zhongye Yiyuan Technology Co., Ltd. responded. If it is necessary to rush to the user's work site, the technical personnel will notify in writing2Arrive at the user's workplace within working days.