Ion Chromatographic Detection Method of Six Anions in Cigarette Paper
A technology of ion chromatography and detection method, which is applied in the detection field of reconstituted tobacco leaves, can solve problems such as difficult separation of lactate and acetate, and achieve the effects of remarkable extraction efficiency, safe and convenient reagents, and simple and easy processing methods
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0028] The establishment of embodiment 1 detection method
[0029] 1.2 Chromatographic working conditions
[0030] IonPac AS19 anion exchange column (4×250mm); KOH eluent; flow rate 1.5mL / min; inhibition current 149mA; column temperature 23°C; injection volume 25μL;
[0031] Table 1 gradient elution conditions
[0032]
[0033] 1.3 Preparation of standard curve
[0034] Prepare 1000 μg / mL lactate, acetate, formate, chloride ion, phosphate stock solution and 2000 μg / mL citrate stock solution respectively, then take different volumes of the stock solution into 25mL volumetric flasks, and use ultrapure water Dilute to the mark, shake well, and prepare mixed standard solutions with different concentrations. The concentration ranges of the six anions are: lactate (0-5 μg / mL), acetate (0-5 μg / mL), formate (0-5 μg / mL), chloride (0-5 μg / mL), phosphoric acid Root (0~40μg / mL), citrate (0~240μg / mL).
[0035] 1.4 Sample pretreatment
[0036] Accurately weigh 0.4g (accurate to 0.0...
Embodiment 2
[0053] The mensuration of embodiment 2 actual sample
[0054] According to the method of the present invention, the content of 6 kinds of anions, lactate, acetate, formate, chloride, phosphate and citrate in 5 kinds of cigarette paper samples with different specifications were measured, and the measurement results are shown in Table 4.
[0055] The results show that the amount of adjuvants added varies greatly among cigarette paper samples of different specifications. For example, no phosphate was detected in samples 1, 2, and 3, while the content of phosphate in sample 5 reached 1.5187mg / g; In the same cigarette paper sample, the addition amount of each adjuvant is also quite different. For example, in No. 2 and No. 3 cigarette paper samples, no phosphate was detected, while the contents of citrate were 14.7841mg / g, 11.3577 mg / g.
[0056] Contents of 6 kinds of anions in table 4 actual samples
[0057]
[0058]
[0059] - means not detected.
[0060] The invention r...
PUM
Property | Measurement | Unit |
---|---|---|
electrical resistivity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap