Atomic Absorption Spectrophotometer SP-AA3638 / SP-AA3668 AAS Scitek

Hanya Tersisa 1 lagi

 


The atomic absorption spectrophotometer is widely used in the analysis of major and trace elements in metallurgy, geology, mining, petroleum, light industry, agriculture, medicine, health, food and environmental monitoring.

Atomic Absorption Spectrophotometer Features:

1. Equipped with a complete software and hardware system. It is highly intelligent, easy to use and simple to operate, and meets the requirements of authority management, audit tracking and other requirements.

2. It has both flame and graphite furnace atomizers. The two test modes can be switched freely and matched automatically.

3. Fully automatic eight-lamp position rotating lamp stand, automatic switching, free setting of work lamp/preheating lamp, automatic call of optimal analysis parameters and analysis conditions.

4. Total reflection optical system, full-band achromatic, automatic wavelength scanning, automatic peak search.

5. Both the flame and graphite furnace systems have deuterium lamps and self-priming background subtraction to meet the detection needs of complex matrix samples.

6.  Full titanium burner, stable combustion and fast heat balance.

7.  Longitudinal heating graphite furnace technology achieves uniform temperature of the graphite tube.

8. Reliable multiple protection systems, real-time flame monitoring, acetylene leakage monitoring and protection, real-time monitoring of abnormal pressure, and cooling water monitoring.

9. The graphite furnace atomization system has alarm functions for insufficient cooling water flow, insufficient argon pressure, excessive temperature of the graphite furnace, abnormal power supply temperature, and poor contact during graphite tube installation, and automatically cuts off the temperature rise program to ensure the safety of the operation and use process.

 ---------------------------------------------------------------------------------------

Model

SP-AA3638

SP-AA3668

Optical System

Optical System

Single Beam

Double Beam

Monochromator

Czerny-Turner type, focal lengths at 350mm

Grating

Grating 1800 lines/mm, scintillation wavelength 250nm

Spectral Bandwidth (nm)

0.1, 0.2, 0.4, 0.7, 1.4, 2nm

Automated slit selection

Wavelength Range (nm)

185-900nm

Wavelength Accuracy (nm)

0.20 nm

0.15nm

Wavelength Repeatability (nm)

≤0.10nm

≤0.05nm

Spectral Bandwidth Deviation

±0.02 nm

Lamp Stand

8

Element Lamp Type

Cu lamp, Cd lamp(Standard accessory)

Other element lamp is optional accessory

Photometric Performance

Reading Mode

Transmittance, absorbance, concentration

Photometric Range

0-125%, -0.1-3.00A

Static Baseline Drift (Cu)

±0.003A/30min

±0.003A/30min

Dynamic Baseline Drift (Cu)

±0.005A/15min

±0.005A/15min

Background Correction

Deuterium lamp≥ 40x (1Abs), self-priming≥ 80x (1Abs) (optional)

Deuterium lamp≥ 40x (1Abs), self-priming≥ 80x (1Abs) (optional)

Flame System

Characteristic Concentration (Cu)

≤0.035ug/ml

≤0.035ug/ml

Detection Limit (Cu)

≤0.006ug/ml

≤0.004ug/ml

Repeatability (Cu)

RSD≤0.6%

RSD≤0.5%

Acetylene Flow Control

Auto 12-Level

Air Assist Control

Auto 4-Level

Burner Lift

Automatic lifting

Burner Head

Titanium 100mm burner

Nebulizer

High efficiency glass nebulizer

Spray Chamber

Corrosion-resistant material spray chamber

Safety Protection

Automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched

Graphite Furnace

Characteristic Amount

Cd≤0.8pg,Cu≤20pg

Cd≤0.8pg,Cu≤20pg

Detection Limit

Cd≤1.0pg,Cu≤10pg

Cd≤0.8pg,Cu≤5pg

Repeatability (Cd)

RSD≤3%

RSD≤2.5%

Heating Range of Graphite Furnace

Room temperature-3000

High Power Heating Range

1500-3000

Slope and Holding Time

1s-255s

Heating Rate

Maximum heating rate 2000°C/s

Atomization Heating Mode

Light-controlled heating, Time-controlled heating, General heating

Protective Gas Flow Outside Pipe

1 L/min

Protective Gas Flow Inside Pipe

4-speed adjustable (0, 50, 200, 250ml/min flow)

Safety Protection

Cooling water flow, Protective gas pressure, Furnace body temperature, Power supply temperature, Graphite furnace installation alarm

Data Processing

Measuring Method

Measuring method

Concentration Calculation Method

Concentration calculation method

Repeat Measurement Times

Repeat measurement times

Report Printing

Report printing

Other

Computer

External connect

Ambient Temp

10-30

Ambient Humidity

40%-85%

Power Supply

220V, 50/60HZ

External Size (W x D x H) (mm)

830x650x560

Shipping Size (W x D x H) (mm)

1000x780x810

N.W./G.W. (kg)

110/130

Standard Accessory

Software, Cd Hollow cathode lamp, Pipette

Optional Accessory

Computer, Printer, Autosampler, Recirculating cooling water system