Equipment components and working principle：
ICP inductively coupled plasma single-channel scanning spectrometer, is a multi-element analysis
of the sequence test measuring equipment. The instrument consists of scanning spectrometer, radio frequency generator, the sample introduction system, photoelectric conversion, control systems, data processing systems, and
analysis software. Plasma is generated from the triple concentric quartz tube in a torch. Argon is put into Torch pipe in tangent direction, the upper part of torch is coiled with copper loop <intercom cooling water>.
High-frequency generator generates the high frequency current(40 MHz frequency around 1 KW power) through the coil, producing around Alternating magnetic field, ionizeing to produce a small amount of argon ion and electron,
in the magnetic field under the accelerated collisions with other neutral atoms, producing more electronic and ions, in the form of eddy current, EDM reacts in the plasma formed under the plasma torch( That is, plasma). The
plasma temperature could be up to 10000 K or higher. Aqueous solution measured by the formation of aerosol spray into the center of the quartz torch channel. Atomic is ionized by energy of outsiders, but the atoms are in
unstable state, and from the high-level transition to the ground state, atoms will release tremendous energy, this energy is a certain wavelength of electromagnetic radiation and is sent out. Different elements have different
spectral characteristics. These feature spectrum shoots grating of spectrometer through the lens, computer rotates grating by controlling the stepper motor, transmission mechanism posit elements characteristic spectra accurately
to the slit, and photomultiplier change the spectrum of light intensity to the current, then deal with the circuit and V / F conversion by computer data processing, the final analysis is made by the printer.
Instruments Model:TR-TC-8100 Accuracy better than the national grade A standard
Instruments Features:
Rapid analysis: in one minute more than 21 to 26 elements can be scanned (domestic only this one).
Wavelength error of indication and repeatability: Wavelength error of indication: ? 0.02nm
Repeatability: ≤ 0.003nm
High precision: relative standard deviation RSD ≤ 1.0%.
Stability: the relative standard deviation RSD ≤ 1.5.0%.
Measurement Range: from trace to common.
Low detection limit: ppb (ug / L) level (some elements of the detection limit see Appendix 1).
Multi-element analysis: 70 metal elements and some non-metallic elements (such as B, P, Si, Se, Te) can be quantitative or qualitative analysis.
Measurement Methods: single-element and multi-element order measurement.
Power: adjustable 800W-1200W.
Convenient operation: new third generation analysis software installed on Windows XP Or Windows7operation system. Multi-window, User Interface are both in Chinese or English languages. Faster analysis, more functions, multi-window and multi-task in real time (domestic
only this one).
Specifications：
RF generator (RF)
TR-TC-8100 similar instrument ICP spectrometer,
automatic ignition, automatic control, etc.
Circuit type: self-inductance feedback oscillation circuit, the output of coaxial cable, matching tuning,
feedback signals from power, closed-loop control.
Frequency: 40.68 MHz ± 0.05%
Frequency stability: ≤ 0.1%
Output power :800-1200 W
Output power stability: ≤ 0.1%
Leakage of electromagnetic field strength of radio: 20 cm from the device.
Electric field strength E: <2 V / m
Sampling devices：
Output of the coil diameter of 25mm, 3-turn.
Torch tube: three concentric type, diameter 20 mm quartz tube torch.
coaxial-type sprayer 6 mm diameter.
double-room fog diameter 34 mm.
Argon carrier gas flow meter specifications and pressure gauges 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 regulator valve (0-0.4Mpa) L / h
5 cooling water temperature :21-26 ℃ flow> 5 L / min pressure> 0.1 Mpa cooling water: resistivity > 1 Ω
Spectrometer：
Optical Pathway: Czerny-Turner.
focal length: 1000mm.
grating Specifications: plasma etching holographic grating; groove density of 3600 lines / mm, engraved lines of:
80 × 110mm (optional groove density of 2,400 lines / mm, engraved lines of:
80 × 110mm).
dispersion of the penultimate line: 0.26nm
1/(Line Dispersion rate): 0.26nm.
resolving power: ≤ 0.008 nm
scan wavelength range:
3600 lines / mm scan wavelength range :180-500 nm
2400 lines / mm scan wavelength range :180-800 nm
stepper motor drive the smallest step: 0.0005nm.
Radio and the incident slit: 20 μ m
mirror specifications: (78 × 105 × 16) mm
temperature keeping: 38 ℃ ± 1 ℃.
Optical Metering devices：
photomultiplier specifications: R212UH or R928
photomultiplier negative high-voltage :0-1000 V stability of <0.03%
photomultiplier current measurement range: 10-4~10-9A
signal acquisition for the V / F exchange: 1mV corresponding 100 Hz
sampling circuit uses foreign high-precision operational amplifiers, improve the accuracy of the sensitivity of the equipment and greatly.
data acquisition equipment communicates with computer through the serial port connection, thus simplifying the circuit to connect more convenient.
Metering mode, single, multi-element sequential
measurement
Instrument operating software requirements
(1) operating system Windows XP or Windows 7 operating platform
(2) choose the number of lines of the measurement wavelength
(3) database spectrum library of more than 110,000
(4) multi-window in the measurement time results in the
display window retains the last results, measure the next sample
(5) the standard addition method software, a standard addition
method, in order to use under different conditions and applications
(6) analysis of the default best mode software analysis
model, with the instrument diagnosis, spectrum analysis, and several measurement methods and several integration mode, the unit optional multiple functions
(7) historical database analysis results are automatically
saved in the history database, you can selectively print you want to print a batch analysis results
(8) output data requirements for the software to support
a laser printer to print the results of the analysis
(Intelligent cooling circulating water tank)
Specifications
RF generator (RF)
TR-TC-8100 similar instrument ICP spectrometer, automatic ignition, automatic control, etc.
Circuit type: self-inductance feedback oscillation circuit, the output of coaxial cable, matching tuning, feedback signals from power, closed-loop control.
Frequency: 40.68 MHz ± 0.05%
Frequency stability: ≤ 0.1%
Output power :800-1200 W
Output power stability: ≤ 0.1%
Leakage of electromagnetic field strength of radio: 20 cm from the device.
Electric field strength E: <2 V / m
Sampling devices
Output of the coil diameter of 25mm, 3-turn.
Torch tube: three concentric type, diameter 20 mm quartz tube torch.
coaxial-type sprayer 6 mm diameter.
double-room fog diameter 34 mm.
Argon carrier gas flow meter specifications and pressure gauges 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 regulator valve (0-0.4Mpa) L / h
5 cooling water temperature :21-26 ℃ flow> 5 L / min pressure> 0.1 Mpa cooling water: resistivity > 1 Ω
Spectrometer
Optical Pathway: Czerny-Turner.
focal length: 1000mm.
grating Specifications: plasma etching holographic grating; groove density of 3600 lines / mm, engraved lines of:
80 × 110mm (optional groove density of 2,400 lines / mm, engraved lines of: 80 × 110mm).
dispersion of the penultimate line: 0.26nm
1/(Line Dispersion rate): 0.26nm.
resolving power: ≤ 0.008 nm
scan wavelength range:
3600 lines / mm scan wavelength range :180-500 nm
2400 lines / mm scan wavelength range :180-800 nm
stepper motor drive the smallest step: 0.0005nm.
Radio and the incident slit: 20 μ m
mirror specifications: (78 × 105 × 16) mm
temperature keeping: 38 ℃ ± 1 ℃.
