Atomic fluorescence spectrometry for detecting Cr (VI), and atomic fluorescence spectrometer thereof

An atomic fluorescence and spectrometer technology, applied in the field of atomic fluorescence spectrometry and spectrometer for detecting Cr, can solve problems such as inability to detect, and achieve the effects of reducing interference, high sensitivity, and good detection effect

Inactive Publication Date: 2012-03-14
BEIJING JITIAN INSTR CO LTD
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hexavalent chromium (Cr) cannot be detected by the existing hydride generation-non-dispersive atomic fluo

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
  • Atomic fluorescence spectrometry for detecting Cr (VI), and atomic fluorescence spectrometer thereof
  • Atomic fluorescence spectrometry for detecting Cr (VI), and atomic fluorescence spectrometer thereof
  • Atomic fluorescence spectrometry for detecting Cr (VI), and atomic fluorescence spectrometer thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The structure of the atomic fluorescence spectrometer detecting Cr(VI) of the present invention is as figure 1 As shown, it includes an evaporator, an excitation light source 6 , an atomizer 10 , a photodetector 7 and a computer 8 . Both the excitation light source 6 and the photodetector 7 are distributed around the atomizer 10 , the exhaust port 2 of the evaporator is connected to the atomizer 10 through a conduit, and the photodetector 7 is connected to a computer 8 .

[0017] The evaporator includes an airtight casing 5, a heating boat 3 and a power supply 4. The heating boat 3 is placed in the airtight casing 5. The airtight casing 5 is provided with an air inlet 1 and an exhaust port 2. The heating boat 3 and the The power supply 4 is connected, the exhaust port 2 of the evaporator is connected with the atomizer 10 through a conduit, the heating boat 3 is made of metal wire or foil made of molybdenum, carbon, tungsten, tantalum or alloy, and the airtight shell 5 i...

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 present invention discloses an atomic fluorescence spectrometry for detecting Cr (VI), and an atomic fluorescence spectrometer thereof. The atomic fluorescence spectrometer comprises an evaporator, an excitation light source, an atomizer, a photoelectric detector and a computer. The evaporator comprises a sealed housing, a heating boat and power supply. The heating boat is arranged inside thesealed housing. The sealed housing is provided with a gas inlet and a gas exhaust port. The heating boat is connected with the power supply. The gas exhaust port of the evaporator is connected with the atomizer by a duct. The atomic fluorescence spectrometry comprises the following steps: heating a sample requiring detection in mixed gas comprising hydrogen and argon to a temperature of 1000-1400DEG C until the sample requiring detection is dried and ashed; heating the ashed residue to the temperature of 2000-2600 DEG C, carrying out secondary atomization for the resulting vapour; adopting atomic fluorescence to detect the Cr (VI) content. The atomic fluorescence spectrometry for detecting the Cr (VI), and the atomic fluorescence spectrometer of the present invention have high sensitivity, simple spectral line and low interference.

Description

technical field [0001] The invention relates to an atomic fluorescence spectrometry and a spectrometer for detecting Cr(VI). Background technique [0002] At present, a large number of literatures have reported the speciation analysis of chromium. The reason why people pay attention to the speciation of chromium is that different forms of chromium have different toxicological and ecological effects. Studies have shown that whether chromium behaves as an essential element or a harmful element, its valence plays a decisive role. Cr(III) is an essential trace element for the human body and is indispensable for normal glucose and lipid metabolism. Chromium deficiency can cause various diseases such as arteriosclerosis. For humans, it is generally believed that Cr(VI) is 100 times more toxic than Cr(III). Cr(VI) has strong toxicity and is one of the confirmed carcinogens, so it is not enough to detect the total amount of Cr, and the specific form must also be analyzed. Therefo...

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
IPC IPC(8): G01N21/64G01N21/01G01N1/44
Inventor 刘霁欣肖融冯礼王晓芳
Owner BEIJING JITIAN INSTR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap