GB/T 42658.3-2025 Active National standards

GB/T 42658.3-2025 Surface chemical analysis—Sample handling,preparation and mounting—Part 3:Biomaterials

Publish Date: 2025-06-30 Implement Date: 2026-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 42658.3-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods

ICS Name: Chemical analysis

Publish Date: 2025-06-30

Implement Date: 2026-01-01

Pages: 16 pages

Scope

This document provides guidance on the processing, mounting, and surface treatment of biological material samples prior to surface chemical analysis. Its purpose is to help analysts understand the conditions required for special sample processing using the following techniques during analysis: — X-ray photoelectron spectroscopy (XPS) or electron spectroscopy for chemical analysis (ESCA); — Secondary ion mass spectrometry (SIMS); — Auger electron spectroscopy (AES). The proposed methods are also applicable to other techniques sensitive to surface composition analysis, such as: — Attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR); — Total reflection X-ray fluorescence spectroscopy (TXRF); — Ultraviolet photoelectron spectroscopy (UPS). This document discusses the impact of the vacuum conditions used, the contamination issues before and after detection, and the problems related to contamination during detection. The biological materials here include hard and soft materials, such as metals, ceramics, scaffolds, and polymers. This document does not include living biological materials such as cells, tissues, and organisms. Other related topics not covered in this document include sample preparation for electron microscopy or optical microscopy.