GB/T 17507-2008 English PDF

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GB/T 17507-2008: General specification of thin biological standards for X-ray EDS microanalysis in transmission electron microscope
Status: Valid

GB/T 17507: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 17507-2008	229	Add to Cart	3 days	General specification of thin biological standards for X-ray EDS microanalysis in transmission electron microscope	Valid
GB/T 17507-1998	279	Add to Cart	3 days	General specification of thin biological standards for X-Ray-Ray EDS microanalysis in electron microscope	Obsolete

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Basic data

Standard ID: GB/T 17507-2008 (GB/T17507-2008)
Description (Translated English): General specification of thin biological standards for X-ray EDS microanalysis in transmission electron microscope
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N53
Classification of International Standard: 71.040.99
Word Count Estimation: 10,190
Date of Issue: 2008-06-16
Date of Implementation: 2009-03-01
Older Standard (superseded by this standard): GB/T 17507-1998
Regulation (derived from): Announcement of Newly Approved National Standards No. 10 of 2008 (total 123)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the transmission electron microscope, X -ray analysis of thin biological standards of technical requirements, test conditions and test methods. This standard applies to thin biological standards for transmission electron microscopy X -ray analysis.

GB/T 17507-2008: General specification of thin biological standards for X-ray EDS microanalysis in transmission electron microscope

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
General specification of thin biological standards for X-ray EDS microanalysis in transmission electron microscope ICS 71.040.99 N53 National Standards of People's Republic of China Replacing GB/T 17507-1998 Transmission electron microscopy X-ray spectrum Thin biological standards of general technical conditions Posted 2008-06-16 2009-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Terms and definitions 1 3 of thin biological standards for technical requirements 4 thin biological standards for the detection of 1 5 Packaging and storage 3 Appendix A (informative) transmission electron microscopy X-ray spectrum of thin biological standards testing report 4

Foreword

This standard replaces GB/T 17507-1998 "electron microscope X-ray spectrum analysis of thin biological standards for general technical conditions." This standard 17507-1998 major changes compared to GB/T as follows. --- The standard name be changed to "a transmission electron microscope X-ray spectrum of thin biological standards General technical conditions"; --- Thin biological standards for thickness range set at 50nm ~ 300nm (1998 Edition 3.8; 3.8 edition); --- Of thin biological standards for when a common element test, the recommended value of the acceleration voltage as 35kV ~ 80kV (1998 edition of 4.2.3.1; Excerpts of 4.2.3.1); --- Delete the requirement for potassium, sodium and other unstable elements analysis (1998 version 4.3.2.2); --- Delete standard transport regulations (the 1998 edition 5.2); --- Thin biological standards for life from two years to five years (the 1998 edition 5.3.2; 5.2.2 edition); --- Appendix A of this standard is the data appendix. This standard by the National Standardization Technical Committee microbeam analysis and focal points. This standard was drafted. Second Military Medical University, Shanghai Medical College, Fudan University and Military Medical Academy of Sciences. The main drafters of this standard. Yang Yong Ji, Chang Yu, Zhang added. This standard replaces the standards previously issued as follows. --- GB/T 17507-1998.

Introduction

X-ray microanalysis component analysis in biomedical field has been more widely used, and this adaptation of X-ray microanalysis Standardization of component analysis also shows its importance. For biomedical applications, X-ray microanalysis for thin biological sample analysis is mainly Elemental analysis of the product. Low concentration of elements in biological tissues, mainly in the soluble elements (such as potassium, sodium, calcium, magnesium, phosphorus, sulfur, chlorine, etc.) Square Type present in a biological tissue. Biological tissue and metal ore materials vary greatly, the analytical methods are very different, not to existing gold Genus, ore analysis standards to regulate. And as the criterion should be standardized, so that thin biological standards for detection technology standardization, and thus its biomedical research The results of the study as a unified, comprehensive, accurate assessment and discussion, is the component analysis in biomedical X-ray microanalysis and abroad need to be resolved Important issues. To this end, the development of this national standard. Transmission electron microscopy X-ray spectrum Thin biological standards of general technical conditions

1 Scope

This standard specifies the transmission electron microscope, X-ray spectrum of thin biological standards of technical requirements, test conditions and measurement methods. This standard applies to thin biological standards for transmission electron microscopy X-ray spectroscopy.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 Means cut using a microtome to a thickness of 50nm ~ 300nm in the biological sample. 2.2 Biological samples and biological standards of chemical composition of elements factor. The average atomic number G Available formula (1) is calculated. G =  Where.

3 thin biological standards for technical requirements

3.1 Physical properties of thin biological standards for materials, the chemical properties to be consistent with the biological sample to be analyzed thin as possible. Thin biological standards for the Element concentration recommended by atomic absorption spectrometry, and gives the element's value bias. 3.2 for the preparation of thin biological standards for a matrix material having an average atomic number to be close to the average atomic number of biological samples, was 3.28. 3.3 thin biological standards for should have a high resistance to electron radiation and contamination resistance. Parent should have sufficient amount of 3.4 standard materials, in addition to setting a sufficient supply of chemical consumption, after being confirmed guarantee made more than 200 Standard products. 3.5 thin biological standards for determining the uniformity index should be less than 3. 3.6 thin biological standards for determining the stability of the index should be less than 3. 3.7 thin biological standards for the concentration of the element error shall be less than ± 5%. 3.8 The thickness of thin biological standards should be within the range of 50nm ~ 300nm. 3.9 Preparation of thin biological standards for should be equal to a diameter of less than 3mm thin slices, available single-hole or porous nylon mesh support, a carbon support network And other low background material support network gripping.

4 thin biological standards for testing

4.1 initial inspection standards 4.1.1 observed with an optical microscope, thin biological standards for primaries a uniform, smooth, clean and undamaged standard. ......

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