Unlock instant, AI-driven research and patent intelligence for your innovation.
A method for rapid detection of imazalil concentration in citrus postharvest antiseptic preservation solution
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of imazalil and fresh-keeping liquid, which is applied in the cross field of chemistry and biology, can solve the problems of expensive instruments and no detection of bactericide concentration, and achieves the effects of low cost, easy operation and wide application prospect.
Active Publication Date: 2016-06-22
HUAZHONG AGRI UNIV
View PDF1 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Although these methods are efficient, highly accurate, and have a wide detection range, they not only require very expensive instruments, but also require professional and technical personnel to operate. This method is currently mainly used for the detection of pesticide residues in fruits, and for common citrus postharvest Commercial processing companies do not have such detection conditions, and there is currently no simple method for real-time and rapid detection of fungicide concentrations in the postharvest preservation process of citrus and other fruits
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0027] A method for rapidly detecting the concentration of imazalil in post-harvest antiseptic and fresh-keeping liquid of citrus, the steps are as follows:
[0028] 1. Weigh 0.72g of sodium dodecylbenzenesulfonate (SDS), transfer it into a 250ml volumetric flask, and make a solution of 0.01mol / L with tap water;
[0031] 4. Use the fruit and vegetable preservative Wandeli (active ingredient content of imazalil: 500g / L) to prepare a solution with an imazalil content of 1000mg / L, and then dilute it into: 800mg / L, 600mg / L, 400mg / L, 200mg / L, 100mg / L;
[0032] 5. Use a Erlenmeyer flask to measure 20ml of the imazalil solutions of the above six concentration gradients, first add 10ml of dilute sulfuric acid, mix well, then add 20ml of dichloromethane, then drop in 5-10...
Embodiment 2
[0043] Gas chromatography detection is compared with titration method detection result of the present invention
[0046] The GC determination method refers to (Xu Guofeng et al., Analysis method of 4 kinds of antiseptic preservatives such as procymidone in apples, bananas and citrus, Acta Pesticide Science, 2009, 11(3):351-356).
[0047] Standard stock solution: Accurately weigh a certain amount of imazalil (Aladdin, 96%) in a 50ml volumetric flask, acetone (analytical pure, Sinopharm Chemical Reagent Co., Ltd.) is set to 10g / L, then diluted to 1g with acetone / L, 0.9g / L, 0.8g / L, 0.7g / L, 0.6g / L, 0.5g / L, 0.4g / L, 0.3g / L, 0.2g / L, 0.1g / L solutions.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a method for rapidly detecting concentration of imazalil in a postharvestpreservative fresh-keeping liquid for mandarin oranges. The method is high in speed, low in cost, simple, easy to operate and suitable for popularization and application in producing regions and enterprises, and has an extensive application prospect. Meanwhile, sodium dodecyl benzenesulfonate and dichloromethane are common and cheap chemicals. Sodium dodecyl benzenesulfonate is a nontoxic chemical agent, and dichloromethane is one of common lowest-toxicitychemical agents in organic reagents, therefore, the safety of the detection method is ensured. According to the method, a titration process is utilized for the first time to detect the concentration of imazalil in a sterilization system on a commercialized-treatment production line of mandarin oranges. Even when the concentration of a titrant is 0.01mol / L, the concentration of imazalil, which is as low as 50mg / L, still can be detected.
Description
technical field [0001] The invention belongs to the cross field of chemistry and biology, and specifically relates to the application of titration method to quickly detect the concentration of imazalil in the rotten fresh-keeping treatment liquid of citrus after harvest. detection. Background technique [0002] Citrus (Citrus) is a citrus plant of the Rutaceae Citrus subfamily and is the largest fruit tree in the world. According to the statistics of the Food and Agriculture Organization of the United Nations (FAO), the world's annual output of citrus has reached 120 million tons in 2011, distributed in 135 countries and regions, and citrus accounts for 20.3% of the world's total fruit output. my country is the main producer of citrus in the world. In 2011, the area of citrus in my country reached 2.29 million hectares, and the output exceeded 29.44 million tons, ranking second only to apples. The output value of citrus is about 40 billion yuan, which can drive 4 to 5 ti...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More