LICA-LI6100 Organic Carbon, Nitrogen, and Carbon Isotope Measurement System

main features

• Multiple parameters such as TOC/TIC/TC/TN/δ 13C can be obtained

• SWAGELOK product is used as the air circuit connector, which has good sealing performance

• Automatic injection measurement, precise injection, saving manpower

• Wide measurement range, suitable for multiple types of samples

• High concentration gas automatic dilution, automatic online calibration

• High reflectivity mirror cavity, high measurement sensitivity

main parameter

• Organic carbon and nitrogen measurement module

• Automatic injection measurement of TOC/TIC/TC/TN for solid and liquid samples

• Zero blank ball valve injection, 120 position injection tray, maximum injection volume of 1.0g

• Independent quartz combustion tube and reduction tube, non integrated design, can be replaced separately

• Dual tube combustion furnace, heating temperature of 1200 ° C and combustion temperature of 1800 ° C

• Gas Separation: Direct TPD Technology Program Heating Adsorption Analysis Separation, Can Analyze Samples with C: N Element Ratios Up to 12000:1

• Blow down capture column: N as N2 directly enters the thermal conductivity detector (TCD), while C as CO2 is captured on the TPD column; When the nitrogen peak reaches the baseline, the adsorption column rapidly heats up and CO2 enters the detector; Perfect peak separation, no overlap, automatic optimization of analysis time;

• Measurement range: C：0-50mg； N: 0-10mg

• High sensitivity thermal conductivity detector (TCD) detection cell

  
  

Intelligent injection control module

• Equipped with automatic gas collection, dilution, measurement, evacuation, and calibration functions, it connects the organic carbon and nitrogen measurement module with the carbon isotope analysis module, and is used for measuring and calculating the δ 13C values of solid and liquid samples.

• Equipped with 2 built-in airbags for alternating circulation of gas collection, with a capacity of ≥ 5L. The instrument records the number of times the airbags are used

• Equipped with startup leak detection and automatic dilution function, it can be diluted according to the pre-set concentration range

• Communication: RS232/TTL interface

• Data storage: Built in SD card

• Response time of solenoid valve: ＜ 20ms

  
  

Carbon isotope analysis module

• Using CRDS laser spectroscopy technology, isotope and gas concentrations are detected by calculating the decay time difference

• Simultaneously measure the 13C/12C ratio, CO2 concentration, and CH4 concentration of CO2 gas, and obtain the carbon isotope values of solid or liquid samples by measuring the CO2 gas processed by the organic carbon and nitrogen measurement module

• Testing room: Physical length ≤ 30 cm, volume ≤ 40 ml, 3 reflective mirrors in the testing room, forming a circular optical path inside the cavity, mirror reflectivity: ≥ 99.999%

• Accuracy of δ 13C (1 σ, 5 min): ≤ 0.1 ‰

• Gas concentration accuracy (1 σ, 30s): CO2: ≤ 200ppb (δ 12C), CO2: ≤ 10pppb (δ 13C); CH4: 50ppb+0.05% reading (δ 12C)

• Concentration measurement range: CO2：380~2000 ppm； CH4：0~500 ppm

Configuration plan

• One organic carbon and nitrogen measurement module

• 1 intelligent injection control module

• One carbon isotope analysis module

• 1 set of consumables

• 1/100000 scale (optional)