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产品名称: DB-ALC2毛细管柱 血液中乙醇的测定顶空气相色谱法
产品型号: DB-ALC2毛细管柱
品牌: 1356
产品数量:
产品单价: 面议
日期: 2020-12-15

DB-ALC2毛细管柱 血液中乙醇的测定顶空气相色谱法的详细资料

血液中乙醇的测定顶空气相色谱法
血液中乙醇的测定顶空气相色谱法 详细信息:

本法利用乙醇的易挥发性,以叔丁醇为内标,用顶空气相色谱火焰离子化检测器进行检测,经与平行操作的乙醇对照品比较,以保留时间进行定性分析;以峰面积为依据,用内标法定量。

色谱柱(2):DB-ALC2(30m´0.32mm´1.2mm)石英毛细管柱或相当者;
柱温:恒温40°C;

b) 载气:氮气,纯度≥99.999%,流速8mL/min;
c) 进样口温度:150°C;
d) 检测器温度:250°C;
e) 加热箱温度:65°C;
f) 定量环温度:105°C;
g) 传输线温度:110°C;
h) 气相循环时间:3.5min;
i) 样品瓶加热平衡时间:10.0min;
j) 样品瓶加压时间:0.10min;
k) 定量环充满时间:0.10min;
l) 定量环平衡时间:0.05min;
m) 进样时间:1.00min。

血液中乙醇的测定顶空气相色谱法   测试谱图:



Determination of ethanol in blood. Headspace gas chromatography
Determination of ethanol in blood. Headspace gas chromatography. Details:

This method utilizes the volatility of ethanol, uses tert-butanol as the internal standard, and uses a headspace gas chromatography flame ionization detector for detection. After comparing with the ethanol reference substance operated in parallel, the retention time is used for qualitative analysis; As a basis, the internal standard method was used for quantification.

Chromatographic column (2): DB-ALC2 (30m´0.32mm´1.2mm) quartz capillary column or equivalent;
Column temperature: constant temperature 40°C;

b) Carrier gas: nitrogen, purity ≥99.999%, flow rate 8mL/min;
c) Inlet temperature: 150°C;
d) Detector temperature: 250°C;
e) Heating box temperature: 65°C;
f) Quantitative loop temperature: 105°C;
g) Transmission line temperature: 110°C;
h) Gas cycle time: 3.5min;
i) Sample bottle heating equilibration time: 10.0min;
j) Sample bottle pressurization time: 0.10min;
k) Filling time of quantitative loop: 0.10min;
l) Balance time of quantitative loop: 0.05min;
m) Sampling time: 1.00min.

Determination of ethanol in blood Headspace gas chromatography Test spectrum: