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Method for detecting residual quantity of Cd, Pd, As, Co, V and Ni in netilmicin sulfate

A netilmicin sulfate and detection method technology, applied to the detection of Cd, Ni residues in netilmicin sulfate, V, Co, Pd, As fields, can solve unknown side effects and affect the treatment of netilmicin sulfate Effect and other issues, to achieve the effect of quality control, efficient measurement, and simple operation steps

Inactive Publication Date: 2021-04-23
WUXI FORTUNE PHARMA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the content of Cd, Pb, As, Co, V, Ni in netilmicin sulfate is too high, it will lead to unknown side effects and seriously affect the therapeutic effect of netilmicin sulfate

Method used

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  • Method for detecting residual quantity of Cd, Pd, As, Co, V and Ni in netilmicin sulfate
  • Method for detecting residual quantity of Cd, Pd, As, Co, V and Ni in netilmicin sulfate
  • Method for detecting residual quantity of Cd, Pd, As, Co, V and Ni in netilmicin sulfate

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Embodiment Construction

[0033] 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.

[0034] 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".

[0035] Implementation of instruments and reagents:

[0036] In this embodiment, an inductively coupled plasma emission spectrometer (ICP), whose model is PE Avio200, is used.

[0037] Raw materials: Cd, Pb, As, Co, V, Ni element standard solution, ...

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Abstract

The invention provides a method for detecting the residual quantity of Cd, Pd, As, Co, V and Ni in netilmicin sulfate, which comprises the following five steps: (1) preparing a linear stock solution and a linear solution; (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 the 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 amounts of Cd, Pd, As, Co, V and Ni 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73G01N1/38G01N1/44
CPCG01N21/73G01N1/38G01N1/44
Inventor 周燕何凌姜吴斌
Owner WUXI FORTUNE PHARMA
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