YY/T 1507.4-2016Determination of impurity elements in ultra-high molecular weight polyethylene powder for surgical implants - Part 4: Determination of aluminium by ICP-MS (English PDF)

Foreword

YY/T 1507 "Determination of impurity elements in ultra-high molecular weight polyethylene powder for surgical implants" is divided into the following four parts. Part 1. Determination of titanium (Ti) content by ICP-MS method;

Part 2. Determination of Chlorine (Cl) Element Content by Ion Chromatography; Part 3. Determination of calcium (Ca) content by ICP-MS method; Part 4. Determination of aluminum (Al) content by ICP-MS method. This part is part 4 of YY/T 1507.

This part is drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

YY/T 1507 of this part of the provisions of the Inductively Coupled Plasma Mass Spectrometry (ICP-MS) method for the determination of surgical implants with ultra-high molecular weight poly Method for aluminum (Al) elements in vinyl powder.

This part applies to the determination of aluminum (Al) in ultra high molecular weight polyethylene powders for surgical implants.

2 Normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 6682 Analytical laboratory water specifications and test methods

3 Principle

After the sample was ashed, the residual solution was atomized by carrier gas (argon) into the inductively coupled plasma (ICP) torch.

Evaporation, dissociation, atomization, ionization and other processes, most of the conversion into a positively charged positive ions, the ion collection system into the mass spectrometer, mass spectrometer According to its mass-to-charge ratio. For a certain mass-to-charge ratio, the mass spectral area or peak height is proportional to the number of ions entering the mass spectrometer, ie The concentration of the sample to be measured in the sample is proportional to the mass spectral area or mass spectrum peak. So it can be measured by measuring the mass spectral area or mass spectrometry peak height measurement The concentration of aluminum (Al) in the sample.

4 Reagent

4.1 Except as otherwise provided, only reagents recognized as excellent grade pure or higher purity and primary water in accordance with GB/T 6682 are used.

4.3 Aluminum (Al) standard solution. 1000 µg/mL (1 mol/L HNO3 medium).

5 Instruments

5.3 Analysis of balance.

5.2 Muffle furnace

5.1 Inductively Coupled Plasma Mass Spectrometer (ICP-MS)

6 Steps