Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Standard substance for calibrating wavelength in ultraviolet visible region as well as preparation method and application of standard substance

A standard substance and ultraviolet technology, applied in the field of standard substances, can solve problems such as poor absorption peak shape of optical filters, inaccurate control of absorbance, unsatisfactory uncertainty, etc., to save calibration steps, wide wavelength coverage, The effect of low uncertainty

Inactive Publication Date: 2021-07-09
SHANGHAI INST OF MEASUREMENT & TESTING TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the wavelength indication error in the ultraviolet-visible region needs to be calibrated by combining the holmium oxide solution / holmium oxide filter and the praseodymium-neodymium filter, but the peak shape of the absorption peak of the filter is not good, and the absorbance cannot be accurately controlled. Uncertainty cannot meet the requirements of high-end UV-Vis spectrophotometers
[0003] CN105911008B discloses a method for measuring the wavelength indication error of an ultraviolet-visible spectrophotometer, which can effectively solve the measurement problem of any wavelength indication error of the ultraviolet-visible spectrophotometer
[0004] Due to the current calibration of UV-Vis spectrophotometers, different filters need to be used in combination, and the calibration effect is not good.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Standard substance for calibrating wavelength in ultraviolet visible region as well as preparation method and application of standard substance
  • Standard substance for calibrating wavelength in ultraviolet visible region as well as preparation method and application of standard substance
  • Standard substance for calibrating wavelength in ultraviolet visible region as well as preparation method and application of standard substance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The present embodiment provides a standard substance for wavelength calibration in the ultraviolet-visible region, and the preparation method is as follows:

[0039] Dissolve 40 g of holmium oxide and 12 g of neodymium oxide in a perchloric acid solution with a mass fraction of 10%, and after complete dissolution, the volume is adjusted to 1 L to obtain the standard substance for wavelength calibration in the ultraviolet-visible region.

Embodiment 2

[0041] The present embodiment provides a standard substance for wavelength calibration in the ultraviolet-visible region, and the preparation method is as follows:

[0042] Dissolve 50 g of holmium oxide and 10 g of neodymium oxide in a perchloric acid solution with a mass fraction of 8%, and after complete dissolution, the volume is adjusted to 1 L to obtain the standard substance for wavelength calibration in the ultraviolet-visible region.

Embodiment 3

[0044] The present embodiment provides a standard substance for wavelength calibration in the ultraviolet-visible region, and the preparation method is as follows:

[0045] Dissolve 30 g of holmium oxide and 14 g of neodymium oxide in a perchloric acid solution with a mass fraction of 12%, and after complete dissolution, the volume is adjusted to 1 L to obtain the standard substance for wavelength calibration in the ultraviolet-visible region.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a standard substance for wavelength calibration in an ultraviolet-visible region as well as a preparation method and application of the standard substance. The standard substance for wavelength calibration in the ultraviolet-visible region comprises the following components in parts by weight, 20-80 parts of holmium oxide, 6-24 parts of neodymium oxide and an acid solution. The standard substance for ultraviolet visible region wavelength calibration provided by the invention is wide in application range, wide in wavelength coverage range, narrower in half width of an absorption peak, more accurate in peak positioning and convenient in absorbance adjustment.

Description

technical field [0001] The invention belongs to the field of reference materials, in particular to a reference material for wavelength calibration in the ultraviolet-visible region, a preparation method and application thereof, and in particular to a standard material for wavelength calibration in the ultraviolet-visible region with a wide application range, and a preparation method and application thereof. Background technique [0002] At present, the wavelength indication error in the UV-visible region needs to be calibrated by combining holmium oxide solution / holmium oxide filter and praseodymium neodymium filter, but the peak shape of the absorption peak of the filter is not good, the absorbance cannot be accurately controlled, and Uncertainty cannot meet the requirements of high-end UV-Vis spectrophotometers. [0003] CN105911008B discloses a wavelength indication error measurement method of an ultraviolet-visible spectrophotometer, which can effectively solve the measu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/33G01N1/28
CPCG01N21/33G01N1/28G01N2201/127G01N2001/2893
Inventor 蒋磊李硕孟娇然徐昊晟丁敏石玮
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com