During the production of biofertilizers and organic feeds, some organic solvents may be exposed. These organic solvent residues in the products not only directly affect the quality of biofertilizers and organic feeds, but also cause environmental pollution and safety accidents.
Lifeasible has developed some methods for the simultaneous determination of multiple organic solvent residues in biofertilizers and organic feeds with simple sample processing, good separation, and high sensitivity. It provides technical support for the comprehensive evaluation of solvent residues in biofertilizers and organic feeds, thus helping our customers to achieve effective control of production and raw material quality.
- Solvent residues that we can detect
| ID |
Name |
ID |
Name |
| 1 |
Benzene |
18 |
p-Xylene |
| 2 |
Toluene |
19 |
m-Xylene |
| 3 |
Ethylbenzene |
20 |
o-Xylene |
| 4 |
Chlorobenzene |
21 |
Styrene |
| 5 |
Acrylonitrile |
22 |
Ethyl acetate |
| 6 |
Methyl acrylate |
23 |
Butyl acetate |
| 7 |
1,2-Dichloroethane |
24 |
3-Methylhexane |
| 8 |
Methanol |
25 |
Methylcyclohexane |
| 9 |
Acetone |
26 |
Heptane |
| 10 |
Ethanol |
27 |
n-Hexane |
| 11 |
Methyl acetate |
28 |
2-Methylpentane |
| 12 |
2-Methylhexane |
29 |
Cyclohexane |
| 13 |
sec-Butyl acetate |
30 |
Dichloromethane |
| 14 |
Cyclohexanone |
31 |
2-Butoxyethanol |
| 15 |
2-Butanone |
32 |
2-Methylbutane |
| 16 |
Isopropanol |
33 |
Dimethoxymethane |
| 17 |
1-Methoxy-2-propyl acetate |
34 |
Trichloroethylene |
- Detection methods we offer
| Method |
Advantage |
| Gas chromatography (GC) |
This method has the advantages of high sensitivity, low cost, and fast detection time. Therefore, this method is our main method for the determination of organic solvent residues in biofertilizers and organic feeds. |
| Headspace-gas chromatography-mass spectrometry (HS-GC-MS) |
Detection is performed in selected ion monitoring (SIM) scan mode. The method has good linearity in the concentration range of 180-1,200 ng/mL for the targets. It has good accuracy, reproducibility, and method durability. |
| Hydrophilic chromatography⁃mass spectrometry |
We optimized the sample preparation and injection volume, mobile phase composition, and mass spectrometry test conditions. The key conditions affecting the accuracy and sensitivity of the analysis, such as the type and proportion of organic solvents in the sample, injection volume, identification and selection of characteristic mass spectrometric signals, were controlled, and the established analytical method was validated methodologically. It can fully meet the quality control requirements of iron biofertilizer and organic feed. |
| Ionic liquid-HS-GC |
We used ionic liquids as solvents and headspace injection for the simultaneous determination of multiple organic solvent residues in the samples. The method is easy to operate, with low detection limits, good reproducibility, low detection limits, and good separation of each peak, which improves our detection capability. |
| Organic solvent extraction method coupled with spectrophotometric method |
The linear detection range and correlation coefficient obtained by our optimized spectrophotometric method were reasonable, and the spiked recoveries and detection precision showed a high level. In addition, our method can significantly shorten the detection time and improve the detection efficiency, which is suitable for the detection of large quantities of samples. |
Organic solvent residues not only affect the quality of biofertilizer and organic feed products but are also prone to food safety issues. Lifeasible provides testing services for solvent residues in biofertilizer and organic feed to our customers. Please contact our staff to learn how we can provide this testing service for you.
For research use only, not intended for any clinical use.
