描述

VOCs Gas Chromatograph solution for Cigarette pack printing Food printing ink
Simple description of scheme

仪器配置: headspace + gas chromatograph + workstation software + nitrogen hydrogen air source

Approximate budget: The enterprise budget is tight, can be equipped with domestic gas chromatography, the approximate budget is about 80,000 元

The enterprise has sufficient budget, which can be equipped with Shimadzu or Agilent gas phase, and the budget is about 180,000 元

Sample making time: Make samples quickly, 关于 10 minutes for each sample

Operation and maintenance: low cost of late operation and maintenance

Cigarette packaging, 墨水, 画, printing industry VOCs gas chromatograph solutions

VOCs Gas Chromatograph solution for Cigarette pack printing Food printing ink
Main characteristics of the instrument
1, the host comes with two valve parts control system, 方便实现在线自动采样.
2. The compensation circuit between columns makes the drift of the baseline during the program temperature rise operation be electronically compensated, 减少第二列带来的复杂性, 检测器和辅助流量系统.
3, detector signals, heater values, heating furnace temperature, flow sensor readings or stored column compensation baseline signals can be distributed to a simulated output channel.
4, automatic detection and fault diagnosis, power protection stored experimental data, stopwatch and running timer, keyboard locking function.

5, can be connected to reverse control workstation, real-time control, and can store 100 sets of experimental conditions and spectra.
6, can install two flow sensing channels, two single column compensation channels.
* Heating furnace system
温度范围: 环境温度 +5 °C 至 400 °C
三阶程序加热速率 0 ~ 50℃/分钟; 增量为0.1℃/分钟. 控温精度 ±0.015℃,
The user can re-calibrate the furnace temperature and set the temperature at will.
智能后门开启系统无级调节进出风量, shorten the system stable balance time after rising/cooling. The time of column box dropping from 300ºC to 50ºC &其; 7 分钟.
* Sampling system
Capillary injector: Optional shunt/non-shunt injection system controlled by a programmed valve.
* detector system
氢火焰离子检测器 (火焰离子化检测器) :

Easy to disassemble and install, 易于清洁或更换喷嘴, 操作简单; 输入信号可进行对数放大, 减少干扰, 高灵敏度, 良好的线性度, 大范围.
灵敏度: Mt≤5×10-12g/s(正十六烷)
基线噪声: ≤ 6×10-12A/H
线性范围: ≥105
稳定时间: < 0.5H

*LHDK-600 headspace sampler

The headspace sampler is connected with the gas chromatograph by a nine-core interface, and the parameters can be inserted by the main machine. After starting, complete the work of automatic heating, charging balance, quantitative tube sampling, six-way valve switching automatic sampling, starting workstation to start sampling and recording, ETC.

VOCs Gas Chromatograph solution for Cigarette pack printing Food printing ink
Set parameter range

Time: Sample heating, charging balance, injection 0 ~ 99min

温度: sample heating, quantitative tube and pipe insulation room temperature ~ 200ºC

压力: Carrier gas balance 0 ~ 0.25Mpa

Station: six stations heating.

VOCs Gas Chromatograph solution for Cigarette pack printing Food printing ink
Range of instrumental analysis

The trace volatile organic compounds (挥发性有机化合物) of benzene, toluene, ethylbenzene, xylene (o, 米, p), 乙醇, isopropyl alcohol, n-butanol, acetone, 4-methyl-2-pentanone, butanone, cyclohexanone, ethyl acetate, n-propyl acetate, n-butyl acetate, isopropyl acetate and propylene glycol methyl ether in cigarette strips and box wrapping paper were analyzed.

VOCs Gas Chromatograph solution for Cigarette pack printing Food printing ink
Analysis principles (* Compliant with tobacco industry standards YC/T207-2006 and YC263-2008)

In a closed container and at a certain temperature, the volatile components in the sample have a distribution balance between the gas phase (headspace) and the matrix (liquid or solid phase). When the equilibrium is reached, the gas phase is separated by gas chromatography. After matrix correction, the content of each volatile component in the sample can be determined, 那是, headspace-gas chromatography (HS-GC).

VOCs Gas Chromatograph solution for Cigarette pack printing Food printing ink
Analysis conditions

色谱仪: Guangzhou Golden Valley scientific instrument set of top air chromatograph sampler temperature: 150℃

Temperature of the detector: 250ºC column box temperature: 40 degrees for 2 分钟, 4 degrees to 180 degrees per minute, keep for 15 分钟. Column front pressure 0.06Mpa. Capillary column: 60m column imported from USA
VOCs Gas Chromatograph solution for Cigarette pack printing Food printing ink
Chromatogram of standard sample:

Shanghai Linghua gas Chromatograph

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