ICP-8800 英文技术参数
Inductively Coupled Plasma Emission Spectrometer
Technical parameter
Product specifications and technical indicators
1、Power Supply System
Working frequency: 27.12MHz
Frequency stability:<0.05%
Matching method: automatic matching
Output power: 500W~1600W, continuously adjustable, power efficiency greater than 65%
Output power stability: ≤ 0.01%
Output working coil inner diameter 25mm, 3 turns, equipped with three concentric outer diameter 20mm quartz torch tubes
The outer diameter of coaxial spray is 6mm; Double tube fog chamber outer diameter 35mm
2、Spectroscopic system
Optical path: Czerny turner type
Focal length: 1000mm
Grating specifications: Ion etched holographic grating with a line density of 3600L/mm 、2400L/mm or 4320L/mm; Scribed area (80 × 110) mm
Resolution: ≤0.008nm (3600 line grating); ≤ 0.015nm (2400 line grating);≤0.005nm (4320 line grating)
Scanning wavelength range: 3600 line grating: (190-500) nm; 2400 line grating: (190-800) nm;4320 line grating: (190-460) nm
3、Detection system
Specification of photomultiplier tube: R212/R928
Negative high voltage of photomultiplier tube: (-50~-1000) V
Measurement range of photomultiplier tube current: (10-12-10-4) A
Signal acquisition: VF conversion
4、Computing system
Host: branded computer
Display: LCD display
Printer: Canon inkjet printer
5、Technical specifications of the entire machine
Scanning wavelength range: 190-460nm (4320L/mm grating);
190nm~500nm (3600L/mm grating);
190nm~800nm (2400L/mm grating)。
6、Measuring range
a. Liquid content: 0.01ppm-several thousand ppm
b. Solid content: 0.001% - --70%
Repeatability: (i.e. short-term stability) relative standard deviation RSD ≤ 1.5%
Stability: Relative standard deviation RSD ≤ 2%
Test speed: 5-8 elements/minute
7、Instrument characteristics
1. There are many testing elements, and a maximum of 70 different elements can be tested.
2. Multiple element simultaneous testing, testing all elements simultaneously in one injection.
3. The analysis speed is fast, about 5 elements per minute, and the fastest testing speed can reach 10 elements per minute.
4. The detection limit is low, and the majority of elements can reach ppb level.
5. Wide linear range, up to 5-6 orders of magnitude, can achieve simultaneous testing of high and low content without the need to replace standard curves.
6. Less chemical interference, more accurate test results.
Performance characteristics
Safe and reliable solid-state RF power supply
The RF power supply used in the instrument has small size, high output efficiency, stable output power, and various safety protection functions such as water, gas, and overload, greatly improving the safety of the instrument and reducing its failure rate.
High degree of instrument automation
The automation level of the instrument is extremely high, and all operations except for the power switch are completed by software. Intelligent software that can provide real-time feedback and information prompts for various operations.
Fully automatic ignition and matching technology
The software can automatically ignite with one click, and all parameter settings are automatically completed. Combined with advanced automatic matching technology, the ignition success rate is high and the operation is simple.
Intelligent flame monitoring function
The instrument is equipped with highly sensitive fiber optic sensors, which can monitor the working status of the flame in real time while the instrument is in operation. In case of abnormal flameout, the instrument can be automatically shut down.
High precision airflow control system
The plasma gas, auxiliary gas, and carrier gas in the instrument work are all controlled by a high-precision mass flow controller (MFC), which has continuous adjustable flow rate and high accuracy in outputting airflow, ensuring the accuracy of test data.
Peristaltic pump injection device
The instrument is equipped with a high-precision peristaltic pump with five channels and sixteen rollers, which can ensure the accuracy of sample injection and prevent liquid accumulation. The rotational speed of the peristaltic pump is continuously adjustable, meeting various testing requirements of customers.
Ultra high resolution optical path system
The instrument is equipped with an imported grating with ultra-high resolution 4320 lines, combined with unique optical path adjustment patent technology, which reduces the resolution of ordinary instruments from about 0.008nm to within 0.005nm. The ultra-high resolution ensures that there is no mutual interference between test elements.
A highly accurate constant temperature system
The overall optical path of the instrument is protected by a precision constant temperature system. The temperature control can be set in real time according to the actual environmental temperature of the customer's laboratory, without the need for long-term uninterrupted adjustment. The temperature control accuracy is ≤ ± 0.1 ℃. The precision constant temperature system ensures the stability of the optical path, and the test data is more stable.
A highly sensitive detector
The instrument is equipped with a high sensitivity imported photomultiplier tube (PMT) as a detector, which can automatically set the optimal testing parameters for different elements to achieve the best detection state and provide the most accurate test results. No need for refrigeration, no need for blowing, long service life.
Ultra low usage cost
When the instrument is not in operation, the power supply, cooling water tank, and gas are all turned off without incurring any costs. The instrument can be turned on and used immediately without the need for prolonged optical path preheating. Using argon gas with a purity of 99.99% is sufficient, without the need for 99.999% high-purity argon, saving at least one-third of the cost.
Automatic adjustment of observation position
The instrument adopts a two-dimensional mobile platform design, which can adjust the position of the torch tube in real time through software. The optimal observation position can be found through feedback signal values to obtain the strongest sensitivity and achieve the best testing effect.