Inductively Coupled Plasma Spectrometer

Instruments Features:

l Rapid analysis: in one minute more than 21 to 26 elements can be scanned (domestic only this one).

l Wavelength error of indication and repeatability: Wavelength error of indication: ± 0.02nm

l Repeatability: ≤ 0.003nm

l High precision: relative standard deviation RSD ≤ 1.0%.

l Stability: the relative standard deviation RSD ≤ 1.5.0%.

l Measurement Range: from trace to common.

l Low detection limit: ppb (ug / L) level (some elements of the detection limit see Appendix 1).

l Multi-element analysis: 70 metal elements and some non-metallic elements (such as B, P, Si, Se, Te) can be quantitative or qualitative analysis.

l Measurement Methods: single-element and multi-element order measurement.

l Power: adjustable 800W-1200W.

Specifications

RF generator (RF)

l HK-8100 similar instrument ICP spectrometer, automatic ignition, automatic control, etc.

l Circuit type: self-inductance feedback oscillation circuit, the output of coaxial cable, matching tuning, feedback signals from power, closed-loop control.

l Frequency: 40.68 MHz ± 0.05%

l Frequency stability: ≤ 0.1%

l Output power :800-1200 W

l Output power stability: ≤ 0.1%

l Leakage of electromagnetic field strength of radio: 20 cm from the device.

Electric field strength E: <2 V / m

Sampling devices

l Output of the coil diameter of 25mm, 3-turn.

l Torch tube: three concentric type, diameter 20 mm quartz tube torch.

l coaxial-type sprayer 6 mm diameter.

l double-room fog diameter 34 mm.

l Argon carrier gas flow meter specifications and pressure gauges Specifications:

n 1 plasma gas flow meter (100-1000) L / h (1.6-16L/min).

n 2 auxiliary gas flow meter (10-100) L / h (0.16-1.66L/min)

n 3 Carrier gas flow meter (10-100) L / h (0.16-1.66L/min)

n 4 carrier gas regulator valve (0-0.4Mpa) L / h

n 5 cooling water temperature :21-26 ℃ flow> 5 L / min pressure> 0.1 Mpa cooling water: resistivity > 1  Ω

Spectrometer

n Optical Pathway: Czerny-Turner.

n focal length: 1000mm.

n 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).

n dispersion of the penultimate line: 0.26nm

n 1/(Line Dispersion rate): 0.26nm.

n resolving power: ≤ 0.008 nm

n scan wavelength range:

n 3600 lines / mm scan wavelength range :180-500 nm

n 2400 lines / mm scan wavelength range :180-800 nm

n stepper motor drive the smallest step: 0.0005nm.

n Radio and the incident slit: 20 μ m

n mirror specifications: (78 × 105 × 16) mm

n temperature keeping: 38 ℃ ± 1 ℃.

Optical Metering devices

n photomultiplier specifications: R212UH or R928

n photomultiplier negative high-voltage :0-1000 V stability of <0.03%

n photomultiplier current measurement range: 10-4~10-9A

n signal acquisition for the V / F exchange: 1mV corresponding 100 Hz

n sampling circuit uses foreign high-precision operational amplifiers, improve the accuracy of the sensitivity of the equipment and greatly.

n data acquisition equipment communicates with computer through the serial port connection, thus simplifying the circuit to connect more convenient.

n Metering mode, single, multi-element sequential measurement

Output of computers and equipment

Host, monitor, printer configuration: according to user requirements.

A: ICP-AES spectrometer standard configuration is as follows

B: the technical quality standards:

n Wavelength error of indication and repeatability: Wavelength error of indication: ± 0.02nm    Repeatability: ≤ 0.003nm

n Scan wavelength range :180-500 nm/3600 lines / mm, 180nm-800 nm/2400 line / mm

n Measuring resolution: ≤0.008 nm

n Instrument repetitive: the relative standard deviation RSD ≤ 1.0%

n The stability of equipment: the relative standard deviation RSD ≤ 1.5%

n Typical elements of the detection threshold: μ g / L (Appendix 1)

Appendix 1 (see table below for some elements of the detection units ppb or ug / L)