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Method for detecting residual amount of mercury in netilmicin sulfate

A netilmicin sulfate and detection method technology, which is applied in the field of detection of mercury residues in netilmicin sulfate, can solve problems such as unknown side effects and affecting the therapeutic effect of netilmicin sulfate, and achieve quality control and high efficiency. Good measurement and sensitivity

Inactive Publication Date: 2021-04-23
WUXI FORTUNE PHARMA
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  • Description
  • Claims
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Problems solved by technology

If the mercury content in netilmicin sulfate is too high, it will cause unknown side effects and seriously affect the therapeutic effect of netilmicin sulfate

Method used

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  • Method for detecting residual amount of mercury in netilmicin sulfate
  • Method for detecting residual amount of mercury in netilmicin sulfate
  • Method for detecting residual amount of mercury in netilmicin sulfate

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or substitutions all fall within the protection scope of the present invention.

[0025] Unless otherwise specified in the description, the components and raw materials in each example of the present invention are of analytical grade. In addition, "g" and "mg" in each example are weight units "gram" and "milligram", respectively; "ml" is volume unit "milliliter".

[0026] Implementation of instruments and reagents:

[0027] In this embodiment, the model of the inductively coupled plasma emission spectrometer (ICP) is PE Avio200.

[0028] Raw materials: mercury standard solution, netilmicin sulfate.

[0029] ...

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Abstract

The invention provides a method for detecting the residual amount of mercury in netilmicin sulfate, which comprises the following five steps: (1) preparing a linear stock solution and a linear solution from a mercury element; (2) preparing a test solution; (3) preparing a standard test solution; (4) measuring the linear solution in ICP, recording a spectrogram, and carrying out linear regression by taking the sample injection concentration as an abscissa and the peak area as an ordinate to obtain a regression equation; and (5) sequentially determining the test solution and the standard test solution according to the steps (2) and (3), and determining the repeatability intermediate precision and the recovery rate of the standard test solution. According to the method disclosed by the invention, the efficient determination of the residual quantity of Cd, Pb, As, Co, V and Ni in netilmicin sulfate is realized through five steps, the operation steps are simple, the sensitivity is good, and the safety, effectiveness and quality controllability of medicines are ensured.

Description

technical field [0001] The invention relates to the technical field of element impurity detection, in particular to a method for detecting residual mercury in netilmicin sulfate. Background technique [0002] Plasma emission spectrometry is a spectroscopic analysis technique that uses a plasma torch as an excitation light source. Among them, the emission spectroscopic analysis method using inductively coupled plasma (ICP) as the excitation light source, referred to as ICP-OES, is one of the most in-depth research, widely used and effective analytical techniques in spectral analysis. The flame temperature of the inductively coupled plasma can reach 6000-8000K. When the sample is introduced into the nebulizer from the injector and brought into the flame by the argon carrier gas, the components in the sample are atomized, ionized and excited. , emitting energy in the form of light. When atoms of different elements are excited or ionized, they emit characteristic spectra of di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73G01N1/38
Inventor 周燕姜吴斌何凌
Owner WUXI FORTUNE PHARMA
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