JPS54104378A - Measuring method of concentrations of hexad chromium - Google Patents

Measuring method of concentrations of hexad chromium

Info

Publication number
JPS54104378A
JPS54104378A JP1115378A JP1115378A JPS54104378A JP S54104378 A JPS54104378 A JP S54104378A JP 1115378 A JP1115378 A JP 1115378A JP 1115378 A JP1115378 A JP 1115378A JP S54104378 A JPS54104378 A JP S54104378A
Authority
JP
Japan
Prior art keywords
sample
concentrations
light
transmits
side filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1115378A
Other languages
Japanese (ja)
Inventor
Takeshi Goto
Koji Omatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP1115378A priority Critical patent/JPS54104378A/en
Publication of JPS54104378A publication Critical patent/JPS54104378A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths

Abstract

PURPOSE:To increase measurement sensitiviyy of Cr<6+> and enable stabilization to be performed by maintaining the sample being measured alkaline and measuring its absorbance. CONSTITUTION:Liquid sample containing Cr<6+> is controlled of its pH preferably at 10 or over and is contained in a sample cell 3. Light from a light source 1 having transmitted through a collimator lens 2, cell 3 is split to luminous fluxes LR, LS by a half mirror 4. The luminous flux LS transmits through a measurement side filter FS of a transmission wavelength of 365nm which is most well absorbed by Cr<6+>. The luminous flux LR transmits through a comparison side filter FR of a transmission wavelength being the wavelength, e.g., 578nm, which is substantially unaffected by Cr<6+>. The intensity ratio of the light having been respectively measurmed and amplified by photoelectric multipliers PS, PR, logarithmic amplifiers As, AR is outputted as the absorbance signal proportional to the concentrations of Cr<6+> in the sample from a circuit 6 and is recorded in a recorder 6.
JP1115378A 1978-02-02 1978-02-02 Measuring method of concentrations of hexad chromium Pending JPS54104378A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1115378A JPS54104378A (en) 1978-02-02 1978-02-02 Measuring method of concentrations of hexad chromium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1115378A JPS54104378A (en) 1978-02-02 1978-02-02 Measuring method of concentrations of hexad chromium

Publications (1)

Publication Number Publication Date
JPS54104378A true JPS54104378A (en) 1979-08-16

Family

ID=11770064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1115378A Pending JPS54104378A (en) 1978-02-02 1978-02-02 Measuring method of concentrations of hexad chromium

Country Status (1)

Country Link
JP (1) JPS54104378A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500163A1 (en) * 1981-02-16 1982-08-20 Armines APPARATUS FOR DETECTING A BODY IN A CIRCULATING FLUID, METHOD AND INSTALLATION FOR USING THE SAME
JPH0954036A (en) * 1995-08-17 1997-02-25 Kobe Steel Ltd Cr concentration meter
CN100447553C (en) * 2005-11-03 2008-12-31 牛增元 Method for detecting hexavalent chrome in dyed leather and product

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500163A1 (en) * 1981-02-16 1982-08-20 Armines APPARATUS FOR DETECTING A BODY IN A CIRCULATING FLUID, METHOD AND INSTALLATION FOR USING THE SAME
JPH0954036A (en) * 1995-08-17 1997-02-25 Kobe Steel Ltd Cr concentration meter
CN100447553C (en) * 2005-11-03 2008-12-31 牛增元 Method for detecting hexavalent chrome in dyed leather and product

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