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KR960024343A - Simultaneous Analysis of Trivalent Chromium and Hexavalent Chromium Using UV Spectroscopy - Google Patents

Simultaneous Analysis of Trivalent Chromium and Hexavalent Chromium Using UV Spectroscopy Download PDF

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Publication number
KR960024343A
KR960024343A KR1019940040287A KR19940040287A KR960024343A KR 960024343 A KR960024343 A KR 960024343A KR 1019940040287 A KR1019940040287 A KR 1019940040287A KR 19940040287 A KR19940040287 A KR 19940040287A KR 960024343 A KR960024343 A KR 960024343A
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South Korea
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absorbance
chromium
concentration
trivalent chromium
trivalent
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KR0143489B1 (en
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소재춘
김정호
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김만제
포항종합제철 주식회사
신창식
재단법인 산업과학기술연구소
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

본 발명은 크롬염처리용액중에 함유되어 있는 3가크롬과 6가크롬을 동시에 분석하여 방법에 관한 것으로, 본 발명에 의하면, 3가크롬 및 6가크롬 표준용액을 각각 제조한 다음 자외선 분광분석기를 사용하여 3가크롬 표준용액의 580nm 및 440nm에서의 흡광도 및 6가크롬 표준용액의 440nm에서 흡광도를 측정하여 580nm 및 440nm에서 3가크롬의 흡광도 대 농도의 검량곡선 및 580nm에서 6가크롬의 흡광도 대 농도의 검량곡선을 작성한 다음, 3가 크롬의 함량은 분석하고자 하는 시료용액의 580nm에서의 흡광도를 측정한 후, 이를 580nm에서 작성된 3가크롬흡광도 대농고 검량곡선에 대입하여 시료용액중 3가크롬의농도를 측정하고, 6가크롬의 함량은 440nm에서 시료용액의 흡광도 및 상기 측정된 3가크롬농도를 3가크롬 표준용액으로 440nm에서 작성된 흡광도 대 농도 검량곡선에 대입하여 440nm에서 3가크롬의 흡광도를 측정하고 상기 두 흡광도차(시료용액 중 6가크롬만의 흡광도)를 구한 다음, 이를 6가크롬 표준용액으로 440nm에서 작성된 흡광도 대 농도 검량곡선에대입하여 시료용액중 6가크롬의 농도를 측정함을 특징으로 하는 3가크롬과 6가크롬의 동시정량분석법이 제공된다.The present invention relates to a method by simultaneously analyzing trivalent chromium and hexavalent chromium contained in a chromium salt treatment solution. According to the present invention, a trichromium and a hexavalent chromium standard solution are prepared respectively, followed by an ultraviolet spectrophotometer. Absorbance at 580 nm and 440 nm of trivalent chromium standard solution and absorbance at 440 nm of hexavalent chromium standard solution were used to determine the calibration curve of absorbance vs. concentration of trivalent chromium at 580 nm and 440 nm and absorbance of hexavalent chromium at 580 nm. After preparing the calibration curve of the concentration, the content of trivalent chromium was measured by absorbance at 580 nm of the sample solution to be analyzed, and then substituted into the trivalent chromium absorbance large concentration calibration curve prepared at 580 nm, and then trivalent chromium in the sample solution. The concentration of hexavalent chromium was measured, and the absorbance vs. concentration calibration curve of the absorbance of the sample solution at 440 nm and the measured trivalent chromium concentration at 440 nm were used as the trivalent chromium standard solution. Measure the absorbance of trivalent chromium at 440 nm by substituting on and calculate the two absorbance differences (absorbance of hexavalent chromium only in the sample solution), and then substituting it on the absorbance vs. concentration calibration curve at 440 nm Simultaneous quantitative analysis of trivalent and hexavalent chromium is provided by measuring the concentration of hexavalent chromium in a sample solution.

본 발명의 자외선 분광분석법으로 3가크롬 및 6가크롬을 동시에 측정하는 경우 별도의 시료제조과정없이 간단한 실험을통하여 정확한 분석결과를 얻을 수 있었으며 분석시가도 대폭 단축되어 각종 공정의 공정분석등에 유용하게 활용될 수 있다.In the case of simultaneously measuring trivalent chromium and hexavalent chromium by the ultraviolet spectroscopy method of the present invention, accurate analysis results can be obtained through simple experiments without a separate sample preparation process, and the analysis time is also greatly reduced, which is useful for process analysis of various processes. Can be utilized.

Description

자외선 분광분석법을 이용한 3가크롬 및 6가 크롬 동시 분석 방법Simultaneous Analysis of Trivalent and Hexavalent Chromium Using UV Spectroscopy

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (2)

3가크롬 및 6가크롬 표준용액을 각각 제조한 다음 자외선 분광분석기를 사용하여 3가크롬 표준용액의580nm 및 440nm에서의 흡광도 및 6가크롬 표준용액의 440nm에서의 흡광도를 측정하여 580nm 및 440nm에서 3가 크롬의 흡광도 대 농도의 검량곡선 및 580nm에서 6가 크롬의 흡광도 대 농도의 검량곡선을 작성한 다음, 분석하고자 하는 사용액중 3가 크롬의 함량은 분석하고자 하는 시료용액의 580nm에서의 흡광도를 측정한 후, 이를 580nm에서 작성된 3가크롬의 흡광도 대 농도 검량곡선에 대입하여 시료용액중 3가크롬의 농도를 측정하고, 6가 크롬의 함량은 440nm에서 시료용액의 흡광도 및 상기 측정된 3가크롬 농도를 3가크롬 표준용액으로 440nm에서 작성된 흡광도 대 농도검량곡선에 대입하여 440nm에서 3가 크롬의 흡광도를 측정하고 상기 두 흡광도차(440nm에서 측정한 미지시료의 흡광도 -440nm에서 측정한 3가 크롬 표준용액의 흡광도=시료 용액 중 6가 크롬 만의 흡광도)를 구한 다음, 이를 6가 크롬 표준용액으로 440nm에서 작성된 흡광도 대농도 검량곡선에 대입하여 시료용액중 6가 크롬의 농도를 측정함을 특징으로 하는 3가 크롬과 6가 크롬의 동시정량분석법.Prepare trivalent chromium and hexavalent chromium standards, respectively, and measure the absorbance at 580 nm and 440 nm of the trivalent chromium standard solution and the absorbance at 440 nm of the hexavalent chromium standard solution using an ultraviolet spectrophotometer. Calibration curve of absorbance vs. concentration of trivalent chromium and absorbance vs. concentration of hexavalent chromium at 580 nm was prepared, and the content of trivalent chromium in the working solution to be analyzed was measured at 580 nm of the sample solution to be analyzed. Subsequently, the absorbance vs. concentration calibration curve of trivalent chromium prepared at 580 nm was measured to measure the concentration of trivalent chromium in the sample solution, and the content of hexavalent chromium was measured at 440 nm. The absorbance of trivalent chromium was measured at 440 nm by substituting the concentration into the absorbance versus concentration calibration curve prepared at 440 nm using a standard solution of trivalent chromium. Absorbance of trivalent chromium standard solution measured at -440nm = absorbance of hexavalent chromium in sample solution), and then substituting it on the absorbance large concentration calibration curve prepared at 440nm as hexavalent chromium standard solution. Simultaneous quantitative analysis of trivalent chromium and hexavalent chromium characterized by measuring the concentration of hexavalent chromium. 1항에 있어서, 상기 각 검량곡선은 표준용액의 pH를 1.62이하가 되도록 조절하여 작성함을 특징으로 하는방법.The method of claim 1, wherein each calibration curve is prepared by adjusting the pH of the standard solution to be 1.62 or less. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940040287A 1994-12-31 1994-12-31 An analysis method of cr3+ and cr6+ using ultra violet light spectrometry Expired - Fee Related KR0143489B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004057312A1 (en) * 2002-12-20 2004-07-08 Research Institute Of Industrial Science & Technology Method and apparatus for analysing oxidation number 3 and 6 of chromium simultaneously
KR101325430B1 (en) * 2007-07-12 2013-11-04 주식회사 포스코 The method for quantitative anaylsis of uss-p and polyethylene glycol
CN110296949A (en) * 2018-03-22 2019-10-01 京东方科技集团股份有限公司 A method of content of 6-valence Cr ions in measurement electronic apparatus material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100396093B1 (en) * 2001-07-26 2003-08-27 재단법인 포항산업과학연구원 Method and apparatus for analysing oxidation number 3 and 6 of chromium simultaneously
CN103822883A (en) * 2012-12-25 2014-05-28 无锡点创科技有限公司 Method for detecting total chromium in water
CN103728397B (en) * 2013-12-30 2015-09-30 广东中烟工业有限责任公司 A kind of pre-treating method analyzing chromium content in Cigarette paper for HPLC-ICP/MS
CN105115969B (en) * 2015-09-16 2017-11-14 四川大学 Automatic analysis method for trace trivalent chromium in water sample

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004057312A1 (en) * 2002-12-20 2004-07-08 Research Institute Of Industrial Science & Technology Method and apparatus for analysing oxidation number 3 and 6 of chromium simultaneously
KR101325430B1 (en) * 2007-07-12 2013-11-04 주식회사 포스코 The method for quantitative anaylsis of uss-p and polyethylene glycol
CN110296949A (en) * 2018-03-22 2019-10-01 京东方科技集团股份有限公司 A method of content of 6-valence Cr ions in measurement electronic apparatus material

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