Method for determining residual quantity of anti-aging agent 4020 in rubber by high performance liquid chromatography-DAD method
A high-performance liquid chromatography and anti-aging agent technology, applied in the field of physical and chemical inspection of harmful substances in rubber, can solve the problems of poor sensitivity and quantitative accuracy, inability to perform quantitative detection, complicated operation, etc., and achieve short detection time and high detection efficiency. Lower limit and limit of quantitation, simple pre-treatment effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0034] Embodiment 1 A kind of high performance liquid chromatography-DAD method measures the method for the residual amount of antioxidant 4020 in rubber
[0035] according to figure 1 The detection process, the detection method includes the following steps:
[0036] (1) Reagents and instruments
[0037] Anti-aging agent 4020 (TSC Shanghai Chemical Industry Development Co., Ltd.); acetonitrile and dichloromethane are both HPLC grade (Shanghai Macklin Biochemical Technology Co., Ltd.); distilled water meets the requirements of first-grade water in GB / T6682.
[0038] American Agilent G6125B / G7117C high performance liquid chromatography (with DAD detector)-DAD instrument; chromatographic column: Agilent EC-C18 (4.6×100mm, 2.7μm); 0.22μm needle filter (Guangzhou Qingfeng Biochemical Technology Co., Ltd. ); KQ5200DE CNC ultrasonic instrument (Kunshan Ultrasonic Instrument Co., Ltd.); UPTC ultrapure water machine (Shanghai Lichen Instrument Technology Co., Ltd.); AR224CN electroni...
Embodiment 2
[0048] Embodiment 2 A kind of high performance liquid chromatography-DAD method measures the method for the residual amount of antioxidant 4020 in rubber
[0049] Select another brand of natural rubber / styrene-butadiene rubber mixed rubber on Taobao, follow the sample pretreatment and measurement method described in Example 1, and measure the residual amount of antioxidant 4020 in the sample: 932 μg / g.
Embodiment 3
[0050] Embodiment 3 method detection limit and quantitative limit
[0051] With acetonitrile / dichloromethane mixed organic solvent (acetonitrile:dichloromethane=6:1) as solvent, prepare standard working curve, represent detection limit and limit of quantification with signal-to-noise ratio of 3 times and 10 times respectively, concrete preparation and The detection process is as shown in Example 1, and the results are shown in Table 1.
[0052] As can be seen from Table 1, the detection method of the present invention is used to detect the anti-aging agent 4020 in the rubber milk tube, and the detection limit is 0.005 μg / mL, and the quantification limit is 0.01 μg / mL.
[0053] Table 1 Method Standard Curve Equation, Correlation Coefficient, Detection Limit and Limit of Quantification
[0054]
PUM
Property | Measurement | Unit |
---|---|---|
recovery rate | aaaaa | aaaaa |
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com