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Method for rapidly detecting rhodamine B in hotpot condiment and forchlorfenuron in watermelon

A technology of hot pot bottom material and forchlorfenuron, which is applied in the direction of measuring devices, analyzing materials, and material analysis through electromagnetic means, can solve problems such as adverse effects on human health, achieve broad application potential, and avoid the effect of chromatographic separation steps

Pending Publication Date: 2020-01-03
CHINESE ACAD OF INSPECTION & QUARANTINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Consumption of watermelons treated with forchlorfenuron may have adverse effects on human health

Method used

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  • Method for rapidly detecting rhodamine B in hotpot condiment and forchlorfenuron in watermelon
  • Method for rapidly detecting rhodamine B in hotpot condiment and forchlorfenuron in watermelon
  • Method for rapidly detecting rhodamine B in hotpot condiment and forchlorfenuron in watermelon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for detecting rhodamine B in hot pot bottom material, performing in-situ sampling and real-time mass spectrometry analysis on rhodamine B, comprising the steps of:

[0038] Sampling: When sampling, use a hypodermic needle to directly inhale the hot pot base material from the original packaging into the syringe, and then absorb the spray solvent. The two are inhaled into the same syringe. In order to obtain the best electrospray effect, replace the needle, specifically remove the syringe The hypodermic injection needle, after shaking it several times, connect the syringe with the filter device (for large particle filtration) and the stainless steel needle of the Luer connector in turn to form a testing syringe, and then connect the testing syringe to the syringe pump, matching A micro-mass spectrometer with a continuous atmospheric pressure interface is connected with a high-pressure supply device to form a needle spray ionization device:

[0039] The spray solv...

Embodiment 2

[0046] A kind of detection method of forchlorfenuron in watermelon, carries out in-situ sampling and real-time mass spectrometry analysis to forchlorfenuron, comprises the steps:

[0047] Sampling: When sampling, the needle of the hypodermic needle directly penetrates the watermelon rind, draws the liquid, and then absorbs the spray solvent. The two are inhaled into the same syringe. In order to obtain the best electrospray effect, replace the needle, specifically remove the hypodermic of the syringe After shaking the injection needle several times, connect the syringe with the filter device (for large particle filtration) and the stainless steel needle of the Luer connector in turn to form a detection syringe, and then connect the detection syringe to the syringe pump and the continuous filter respectively. The micro-mass spectrometer at the atmospheric pressure interface is connected with the high-voltage supply device to form a needle spray ionization device;

[0048] The s...

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Abstract

The invention discloses a method for rapidly detecting rhodamine B in a hotpot condiment and forchlorfenuron in a watermelon. The method comprises the following steps of: carrying out sampling, i.e.,directly sucking a sample into a cylinder by adopting a syringe, then sucking up a spraying solvent, taking down a hypodermic needle of the syringe, sequentially connecting the cylinder with stainlesssteel needles of a filtering device and a Luer taper to form a detection syringe, and then respectively connecting the detection syringe with an injection pump, a miniature mass spectrometer with a continuous atmospheric pressure connector and a high voltage providing device to form a needle spraying ionization device; and carrying out detection, i.e., pushing out the sample and the spraying solvent by the injection pump, simultaneously providing a high voltage by the high voltage providing device to form electrospray so as to effectively generate ions, and carrying out detection by the miniature mass spectrometer with the continuous atmospheric pressure connector. The invention develops the simple, convenient and rapid working flow and aims to carry out field rapid identification on illegal additives in the hotpot condiment and the watermelon.

Description

technical field [0001] The invention relates to a detection method of chemical substances, in particular to a method for rapidly detecting rhodamine B in hot pot bottom material and forchlorfenuron in watermelon. Background technique [0002] With population growth and life expectancy, people's increasing food demand has promoted the development of the food industry. Food safety and food quality are fundamental to people's livelihood, and thus have attracted widespread attention from stakeholders around the world. Food fraud is an economically driven concept that typically involves the deliberate act of deceiving consumers and compromising the authenticity, safety, quality and reliability of food products. Food adulteration is a branch of food fraud, which refers to adding undeclared or unapproved substances to food, making fraudulent substitutions or additions, with the purpose of increasing the apparent value of the substance or reducing production costs for profit. Chem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62
CPCG01N27/622
Inventor 马强孟宪双李文涛袁文峰白桦
Owner CHINESE ACAD OF INSPECTION & QUARANTINE
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