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 io
nization 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: co
nstant 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: