产品名称： GGX-830 atomic absorption spectrophotometer
Food hygiene, geology, metallurgy, agricultural testing, chemical environmental protection, water quality testing, pharmaceutical commodity inspection, education and research, etc.
It is mainly used for more than 70 elements such as gold, silver, copper, lead, zinc, manganese, potassium, sodium, calcium, magnesium, iron and cadmium in food, surface water, groundwater, drinking water and other samples.
•Integrated atomic absorption spectrometer with deuterium lamp background correction.
•8 Lamp simultaneously light or preheat.
•Short optical path; strong energy; one-key converted pneumatic pump.
•Stable and reliable flame atomization system.
•Excellent graphite furnace system.
•The optimized EMC includes EMI(electromagnetic interference) and EMS(electromagnetic tolerance) circuit design to ensure the reliable and stable operation of the instrument circuit;
•Patented 52 position graphite furnace automatic sampler; automatically configure the working curve; add matrix modifier freely; injection accuracy ≤± 0.5%.
•Secure monitoring system.
•Powerful data processing system.
•Wavelength range: 190~900nm.
•Wavelength repeatability: <0.1nm.
•Wavelength accuracy: < ±0.2nm.
•Spectral bandwidth: 0.2nm, 0.4nm, 1.0nm, 2.0nm (automatic switching).
•Baseline drift: <0.003A/30min.
•Monochromator: optimized aberration elimination C-T monochromator; automatic peak seeking and scanning.
•Grating: C-T(Czerny-turner) type internal optical design; focal length 270mm; grating ruling density 1800 lines/mm.
•Detector: photomultiplier tube with high sensitivity and wide spectral range.
•Resolution: When the spectral bandwidth is 0.2nm, the manganese double lines (279.5nm and 279.8nm) are separated and the peak-to-valley energy ratio is less than 25%.
•Rotating Lamp Holder: 8 Lamp; automatic conversion and alignment.
•Background Correction Ability: ≥60 times.
▌Flame atomization system:
•Burner: high temperature resistant, corrosion-resistant metal titanium alloy; three-dimensional adjustment.
•Atomization chamber: explosion-proof; corrosion-resistant; efficient glass nebulizer; easy to clean.
•Regulation System: automatic PC control and regulation (flow of gas and auxiliary gas; burner position and angle); automatic optimization; automatic ignition; automatic identification of combustion head.
•Safety Protection: a full set of safety interlocking system; various pressure monitoring; automatic safety protection functions; acetylene leakage alarm and shutdown system (automatic monitoring of combustion head, flame state, water seal, gas pressure and nebulizer system pressure; automatic interlocking and shutdown in case of abnormality or power failure).
•Liquid Level Detection: prohibit the overflow of waste liquid.
▌Graphite furnace atomization system:
•Temperature range: room temperature to 3000 ℃; temperature self-correction function.
•Temperature control accuracy: ≤1%.
•Heating rate: ≥2000℃/s.
•Temperature control program: 10 heating procedures(maximum); 3 heating modes(step, slope and hold).
•Heating mode: longitudinal heating.
•Safety detection measures: graphite furnace body temperature detection; cooling water pressure detection; inert gas pressure detection; graphite tube fracture or unclamp detection.
•Safety protection: argon underpressure indicator; cooling water flow insufficiency, overheating or overcurrent alarm; automatic protection function.
•Concentration calculation method: standard curve method(1~3 curves); automatic fitting; standard addition method; repeated measurement(1~99 times) and calculation(average value, standard deviation and relative standard deviation).
•Software and data processing: high intelligent software; automatic instrument and accessory control; automatic optimization.
•Result printing: parameter printing; data result printing; graphic printing; report summary; test data saving and exporting in Excel for editing.