GB/T 38257-2019Laser-induced breakdown spectroscopy (English PDF)
激光诱导击穿光谱法
This is a limited preview
Buy now to download the full PDF (14 pages)
Need quotation for your management?
Get a formal quotation for GB/T 38257-2019 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 10, 2019
Implementation date
July 1, 2020
Scope
GB/T 38257-2019 is the English-translated version of 激光诱导击穿光谱法.
GB/T 38257-2019 is the Chinese standard "Laser-induced breakdown spectroscopy". Its scope clause reads: This standard specifies the terms and definitions, basic principles, test conditions, equipment and devices, samples, and test procedures of laser-induced breakdown spectroscopy.
Procedures, data processing and test reports. This standard applies to the detection and analysis of chemical elements of solid, liquid and gaseous substances. Its clauses include terms and definitions.
Found what you need?
Document preview — GB/T 38257-2019
National Standard of the People's Republic of China
- ICS
- 17.180.99
- Classification
- L 50
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Basic principles
- 5 Test conditions
- 6 Equipment and devices
- 6.1 Component
- 6.2 Laser light source system
- 6.3 Laser focusing system
- 6.4 Plasma radiation collection system
- 6.5 Spectrometer
- 6.6 Control circuit and data processing system
- 7 Sample
- 7.1 Samples and substances to be analyzed
- 7.2 Matrix effects of the sample
- 7.3 Non-uniformity of the sample
- 7.4 Sample preparation and pretreatment
- 8 Test step
- 8.1 Start-up warm-up
- 8.2 Parameter setting
- 8.3 Calibration of Spectrum Intensity
- 8.4 Spectral Acquisition
- 8.5 Spectral preprocessing
- 9 Data processing
- 9.1 Qualitative analysis
- 9.2 Quantitative analysis
- 9.3 Semi-Quantitative Analysis
- 10 Test report
- Appendix A (informative) Test report format
1 Scope
This standard specifies the terms and definitions, basic principles, test conditions, equipment and devices, samples, and test procedures of laser-induced breakdown spectroscopy.
Procedures, data processing and test reports.
This standard applies to the detection and analysis of chemical elements of solid, liquid and gaseous substances.
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB 7247.1 Safety of laser products. Part 1. Equipment classification and requirements
GB/T 13966-2013 terminology for analytical instruments
GB/T 14666-2003 Analytical Chemistry Terms
3 terms and definitions
The terms and definitions defined in GB/T 13966-2013 and GB/T 14666-2003 and the following apply to this document.
3.1
Plasma is formed by laser ablation of the substance to be analyzed, in which excited atoms, ions or molecules transition to low energy levels or ground states
At that time, photons with a specific energy are emitted outward to form a characteristic spectrum, thereby obtaining the chemical composition or other characteristics of the substance to be analyzed.
3.2 Laser-induced plasma
Plasma generated by laser ablation.
Note. The above plasma generally contains electrons, atoms, molecules, positive and negative ions, and micro-nano particles.
3.3 Standard sample
It has the accuracy to meet the needs of analysis, assign value to the substance to be analyzed, evaluate the measurement method, and calibrate or verify the substance of the equipment.
3.4 Calibration curve
Under specified conditions, it represents the relationship between the content of the element to be analyzed and the measured spectral intensity value.
Note 1. The calibration curve is also called the calibration curve.
Note 2. Rewrite GB/T 13966-2013, definition 2.89.
3.5 Qualitative analysis
Determine whether the element to be analyzed contains the element according to the characteristic spectral line of the laser-induced plasma spectrum
Analytical methods.
Note 1. Analytical methods for classifying substances based on spectral characteristics are also called qualitative analysis.
Note 2. Rewrite GB/T 13966-2013, definition 2.2.
GB/T 7962.13 | GB/T 7962.7 | GB/T 41310 | GB/T 18310.10 | GB/T 38256 | […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.
Referenced standards
How to Download GB/T 38257-2019
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB 7247.1-2012 — Safety of laser products - Part 1: Equipment classification and requirements
GB/T 13966-2013 — Terminology for analytical instruments
GB/T 7251.4-2026 — Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)
Secure payment via Stripe
Payments accepted
GB/T 38257-2019
$170.00