Method for determining trace elements in silica gel medical instrument

A technology for medium and trace elements and medical devices, which is used in measuring devices, instruments, scientific instruments, etc., can solve the problems of inability to detect multiple elements at the same time, susceptible to interference analysis speed, narrow linear range, etc., and achieve accurate and reliable measurement results. The effect of good linear range, low detection limit

Pending Publication Date: 2021-04-09
HEBEI INST FOR DRUG & MEDICAL DEVICE CONTROL (HEBEI INST FOR COSMETICS CONTROL) +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The AAS method has a narrow linear range, is susceptible to interference and has a slow analysis speed, and cannot detect multiple elements at the same time
Although the ICP-OES method has fast analysis speed and high efficiency, the detection limit is relatively high.

Method used

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  • Method for determining trace elements in silica gel medical instrument
  • Method for determining trace elements in silica gel medical instrument
  • Method for determining trace elements in silica gel medical instrument

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0054] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0055] 1. Embodiment

[0056] Weigh 0.4320g of silica gel into a polytetrafluoroethylene digestion tube, and use inductively coupled plasma mass spectrometry to determine arsenic, lead, cadmium, mercury, vanadium, molybdenum, selenium, cobalt, antimony, barium, chromium, and copper in silica gel , tin, nickel element content, mainly comprises the following steps:

[0057] (1) Selection of blank control solution: select a nitric acid solution with a mass percent concentration of 1% as a blank reagent;

[0058] (2) Selection of reference standard solution: select reference standard solution, wherein the content of arsenic, lead, cadmium, mercury, vanadium, molybdenum, selenium, cobalt, antimony, barium, chromium, copper, tin, nickel element is 100 μg / mL;

[0059] (3) Preparation of standard curve: Take 1 mL of the reference standard solution in (2) a...

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Abstract

The invention belongs to the technical field of medical instrument analysis, and particularly relates to a method for determining trace elements in a silica gel medical instrument by inductively coupled plasma mass spectrometry. The method comprises the following steps: selecting a blank control solution, selecting a control standard solution, preparing a standard curve, digesting a blank and a sample, diluting a digestion solution to a constant volume, detecting by using inductively coupled plasma-mass spectrometry (ICP-MS), and analyzing a result. The method has the characteristics of simplicity, convenience, rapidness, high analysis speed, accurate and reliable measurement result and the like, and can be used for simultaneously detecting 14 elements, so that the working efficiency is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of medical device analysis, and in particular relates to a method for measuring trace elements in silicon gel medical devices by inductively coupled plasma mass spectrometry. Background technique [0002] Trace elements are the basic components of living organisms, participate in various biochemical reactions in the human body, and play an irreplaceable and important role. However, it is worth noting that certain trace elements that are beneficial to the human body can also cause toxic and side effects to the human body when the content is too high. For example, acute poisoning of arsenic can cause a large amount of hemolysis, causing acute renal failure, and chronic poisoning can lead to central nervous system and peripheral neuropathy. [0003] Silicone gel medical devices come into contact with the human body, especially some implantable silicone gel medical devices that require long-term contact with th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/626
CPCG01N27/626
Inventor 刘若锦付步芳王丽王健刘华胡健尹紫明邢娣娣
Owner HEBEI INST FOR DRUG & MEDICAL DEVICE CONTROL (HEBEI INST FOR COSMETICS CONTROL)
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