Atomic Absorption Spectrophotometer BK-AA3618 BK-AA3638 BK-AA3668
Brand BIOBASE
Product origin CHINA
Delivery time Within 7 days
Supply capacity Factory Direct Supply
Model BK-AA3618 BK-AA3638 BK-AA3668
Introduction：
BK-AA3618 is a dedicated flame atomic absorption spectrophotometer, BK-AA3638 and BK-AA3668 are integrated systems combining both flame and graphite furnace atomization technologies. These instruments are widely utilized in environmental monitoring, food safety testing and metallurgical analysis for the accurate determination of trace and major elements.
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Features:
1. Total reflection optical system ensures excellent signal-to-noise ratio of the instrument.
2. Eight-lamp position with 360° rotation design.
3. Workstation software under MS Windows system, featuring concise, professional, automatic and full operation.
4. QA/QC functions: For each test, the SD and RSD of absorbance are submitted, while the SD and RSD of calculated concentration are provided; the working curve for standard samples automatically checks the correlation coefficient.
5. Full information measurement: Each measurement saves results from different data processing methods (average, peak height, peak area, and statistical results) for user analysis.
6. One-click database quickly completes settings such as wavelength, spectral bandwidth, lamp current, negative high voltage, and energy balance.
7. Graphite Furnace Heating Method: Longitudinal heating of the graphite furnace (ensures uniform gas-phase temperature inside the graphite tube, allowing the sample to reach atomization temperature simultaneously and instantaneously, thereby improving atomization efficiency and measurement accuracy, ensuring more reliable analytical results, reducing performance requirements for the furnace body, and extending its service life)(Only for BK-AA3638 & BK-AA3668).
Technical Parameters:
Model | BK-AA3618 | BK-AA3638 | BK-AA3668 | |
Instrument Type | Flame system | Flame & GFAA integrated system | ||
Optical System | Beam Type | Double-beam | ||
Diffraction Grating | Groove 1800lines/mm, blaze wavelength 250nm | |||
Wavelength Range | 185~900nm | |||
Spectral Bandwidth | 0.1, 0.2, 0.4, 0.7, 1.4, 2.0nm | |||
Wavelength Accuracy | ±0.15nm | ±0.2nm | ±0.15nm | |
Wavelength Repeatability | ≤0.05nm | ≤0.1nm | ≤0.05nm | |
Spectral Bandwidth Deviation | ±0.02nm | |||
Lamp Stand | 8(Support simultaneous preheating of 1~4 lights) | |||
Photometric Performance | Reading Modes | Transmittance, absorbance, concentration | ||
Photometric Range | 0~125%T, -0.1~3.00Abs | |||
Baseline Stability | Drift ±0.002Abs(Steady 30min) Drift ±0.004Abs(Dynamic 15min) | Drift ±0.003Abs(Steady 30min) Drift ±0.005Abs(Dynamic 15min) | Drift ±0.002Abs(Steady 30min) Drift ±0.004Abs(Dynamic 15min) | |
Background Correction Ability | Deuterium lamp: ≥40 fold(at 1Abs) Self-reversal: ≥80 fold(at 1Abs) | Deuterium lamp: ≥40 fold(at 1Abs) | Deuterium lamp: ≥40 fold(at 1Abs) Self-reversal: ≥80 fold(at 1Abs) | |
Flame Analysis | Characteristic Concentration | Flame method for Cu: ≤0.02μg/mL | Flame method for Cu: ≤0.035μg/mL | Flame method for Cu: ≤0.02μg/mL |
Detection Limit | Flame method for Cu: ≤0.004μg/mL | Flame method for Cu: ≤0.006μg/mL | Flame method for Cu: ≤0.004μg/mL | |
Repeatability | Flame method for Cu: ≤0.5% | Flame method for Cu: ≤0.6% | Flame method for Cu: ≤0.5% | |
Burner | Titanium burner head | |||
Nebulizer | High-efficiency glass nebulizer | |||
Safety Features | Flame gas & auxiliary gas abnormal pressure protection | |||
Graphite Furnace Analysis | Characteristic Mass | / | Cd ≤0.6pg Cu ≤20pg | Cd ≤0.5pg Cu ≤20pg |
Detection Limit | / | Cd ≤1.0pg Cu ≤25pg | Cd ≤0.8pg Cu ≤25pg | |
Repeatability(Cd) | / | ≤3% | ≤2.5% | |
Graphite Furnace Temperature Range | / | RT~3000°C | ||
Heating Rate | / | Maximum 2000°C/s | ||
Safety Features | / | Alarms for cooling water flow, protective gas pressure, furnace body temperature, power supply temperature, and graphite tube installation | ||
Data Processing | Calculation Method for Concentration | Standard curve method(6 linear and non-linear fitting methods), standard addition method, interpolation method | ||
Number of Repeated Measurements | 1~30 times; calculates and provides the average value, standard deviation and relative standard deviation of absorbance and concentration | |||
Standard Accessory | Element lamp(Cu*1), oil-free air compressor, software, U disk | Element lamp(Cu*1, Cd*1), oil-free air compressor, software, U disk, graphite tube*5, pipette*1(5~50μl), pipette tip*1000(200μl) | ||
Optional Accessory | Oxygen-enriched high-temperature flame, hydride generator, audit trailing software, flame autosampler | Oxygen-enriched high-temperature flame, hydride generator, audit trailing software, recirculating chiller, graphite furnace autosampler, flame autosampler | ||
Power Supply | AC 220V, 50/60Hz | |||
External Size(W*D*H) | 830*650*560mm | |||
Package Size(W*D*H) | 1010*780*830mm | |||
Net Weight | 85kg | 120kg | 125kg | |
Gross Weight | 135kg | 183kg | ||
