Method for simultaneously detecting content of four heavy metal elements in tobacco leaves
A technology of element content and heavy metal, which is applied in the content of four heavy metal elements of mercury, cadmium, and simultaneously detects arsenic and lead in tobacco leaves and its products, can solve problems such as no successful reports, and solve the problem of decomposition and residual organic matter interference Problems, short digestion time, and low detection limit
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0016] Experimental example
[0017] 1. This method was used to determine the As, Pb, Cd, Hg in 71 tobacco leaf samples of the same variety and the same part in Yunnan, and the determination was performed 6 times in parallel.
[0018] 1.1 Instruments and reagents
[0019] Instrument part: microwave digestion extractor: Multiwave 3000 (Anton paar, Austria, equipped with F100-TMF high pressure digestion and extraction reaction inner tube); Optimass 9500 inductively coupled plasma right-angle acceleration time-of-flight mass spectrometer (ICP-oaTOF-MS Australia GBC scientific Equipment Pty Ltd); Electronic balance: BP221S type (sarlorius company sensing volume 0.0001g); special constant temperature and humidity oven for tobacco: PC000 type (British Astell Scientific company); ultrapure water meter: outlet water conductivity ≥ 18.2MΩ·cm (MiLi -Q company); the utensils used are soaked in 10% nitric acid for 48h.
[0020] Reagent part: 65% concentrated nitric acid, 30% hydrogen peroxide (m...
PUM
Abstract
Description
Claims
Application Information
- 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