SY/T 7809-2024 in English
VALIDDetermination of aluminum, zinc, iron, nickel, vanadium, calcium and sodium in crude oil - Organic sampling - Inductively coupled plasma optical emission spectrometry
- Issued on:2024-09-24
- Implemented on:2025-03-24
- File Format:PDF
- Delivery:Via email within 1~3 business days
$252.00
| Standard No: | SY/T 7809-2024 |
| Document status: | VALID |
| Title in English: | Determination of aluminum, zinc, iron, nickel, vanadium, calcium and sodium in crude oil - Organic sampling - Inductively coupled plasma optical emission spectrometry |
| Title in Chinese: | 原油中铝、锌、铁、镍、钒、钙、钠含量的测定 有机进样-电感耦合等离子体发射光谱法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-09-24 |
| Implemented on: | 2025-03-24 |
| Chinese Classification: | E21-Crude petroleum |
| Professional Classification: | SY-Oil & Gas |
| Related Keywords: | plasma optical emission spectrometry introduction analysis
plasma optical emission spectrometer crude oil heavy crude oil organic solvent detection limit |
Introduction
Analysis of the core content of the standard
This standard innovatively adopts inductively coupled plasma optical emission spectrometer combined with organic solvent direct injection technology to solve the problem of matrix interference in the detection of metal elements in crude oil. The main technological breakthroughs are reflected in:
| Technical dimension | Traditional method | This standard method |
|---|---|---|
| Sample pretreatment | Ashing/digestion | Direct dilution with organic solvent |
| Detection limit (mg/kg) | 0.1-0.5 | 0.04-0.26 |
| Analysis cycle | 4-6 hours | 1-2 hours |
Key instrument configuration requirements
The standard clearly stipulates that the inductively coupled plasma optical emission spectrometer must meet the following requirements:
- Full coverage of the wavelength range 160-780nm
- Equipped with an oxygenation system to prevent carbon deposition on the matrix tube
- The atomizer must be resistant to corrosion by organic solvents
Actual application case
When a refinery used this method to detect imported heavy crude oil, it was found that:
The vanadium content reached 48.7mg/kg (standard curve range 0.35-50.03mg/kg), and the service life of the matrix tube was effectively extended by adding an oxygen flow rate of 0.03L/min.
Key points for standard implementation
- Oil-soluble internal standards (yttrium/cobalt) must be used to correct for matrix effects
- Linear correlation coefficient of standard curve≥0.995
- Every 5-10 samples need to be verified with standard solution
Technology evolution analysis
Compared with the 2010 version of the method, the 2024 version has the following major improvements:
- Added calcium and sodium elements detection schemes
- Precision index improved by 15-20%
- Introduction of oxygen-assisted combustion technology
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
SY/T 7550-2024 in English
Determination of Wax, Resin, and Asphaltene Content in Crude Oil
2024-09-24 -
SY/T 7808-2024 in English
Determination of salt content in crude oil. Ion chromatography
2024-09-24
