A Gas Chromatography-Mass Spectrometry Method for the Determination of Three Trace Halogenated Cinnamic Acids in Rice
A gas chromatography and fluorocinnamic acid technology, which is applied in the field of trace substance analysis and detection, can solve the problem of lack of simultaneous detection methods for three trace halogenated cinnamic acid compounds in rice, etc., and achieve the effect of saving pretreatment time.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0076] In Example 1, Thai basmati rice was used as the sample matrix to carry out standard addition recovery experiments to verify the feasibility of the method of the present invention. The samples were taken from Fuzhou Yonghui Supermarket and processed according to the following steps:
[0077] 1. Extraction and adsorption of compounds:
[0078] The rice sample is ground into powder and passed through a 60-mesh sieve for sealed storage. When in use, weigh 5.00g of the sample into a 50mL plastic centrifuge tube with a stopper, and add 2.00mL of the sample at a concentration of 10.0μg / L, 20.0μg / L and 200.0μg respectively. / L of three compound standard solutions, prepared three levels of six-parallel spiked samples, vortexed for 2h, added 2.0mL of 0.1% formic acid water to infiltrate, and added 20mL of ethyl acetate, vortexed, and oscillated for 15min Extract, centrifuge, and take the supernatant to another centrifuge tube with stopper, re-extract once, and combine the upper l...
Embodiment 2
[0089] In Example 2, Northeast Rice was used as the sample matrix to carry out the standard addition recovery experiment to verify the feasibility of the method of the present invention. The sample was taken from Fuzhou Yonghui Supermarket and processed according to the following steps:
[0090] 1. Extraction and adsorption of compounds:
[0091] The rice sample is ground into powder and passed through a 60-mesh sieve for sealed storage. When in use, weigh 5.00g of the sample into a 50mL plastic centrifuge tube with a stopper, and add 2.00mL of the sample at a concentration of 10.0μg / L, 20.0μg / L and 200.0μg respectively. / L of three compound standard solutions, prepared three levels of six parallel spiked samples, vortexed for 2h, added 2.0mL of 0.1% formic acid water to infiltrate, and added 20mL of ethyl acetate, vortexed, and oscillated for 30min Extract, centrifuge, and take the supernatant to another centrifuge tube with stopper, re-extract once, and combine the upper lay...
PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More