DE818270C - Colorimeter - Google Patents

Colorimeter

Info

Publication number
DE818270C
DE818270C DEP5454A DEP0005454A DE818270C DE 818270 C DE818270 C DE 818270C DE P5454 A DEP5454 A DE P5454A DE P0005454 A DEP0005454 A DE P0005454A DE 818270 C DE818270 C DE 818270C
Authority
DE
Germany
Prior art keywords
sample
examined
colorimeter
frame
tube containing
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.)
Expired
Application number
DEP5454A
Other languages
German (de)
Inventor
Albrecht Alte
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.)
APTILA APP und GERAETEFABRIK F
LANDW BRUNO GRASSE
Original Assignee
APTILA APP und GERAETEFABRIK F
LANDW BRUNO GRASSE
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 APTILA APP und GERAETEFABRIK F, LANDW BRUNO GRASSE filed Critical APTILA APP und GERAETEFABRIK F
Priority to DEP5454A priority Critical patent/DE818270C/en
Application granted granted Critical
Publication of DE818270C publication Critical patent/DE818270C/en
Expired 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
    • G01N21/29—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection
    • G01N21/293—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using visual detection with colour charts, graduated scales or turrets

Landscapes

  • 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)
  • Spectrometry And Color Measurement (AREA)

Description

Die Erfindung betrifft ein Kolorimeter, vorzugsweise zur Betimmung der aktuellen Wasserstoffionenkonzentration etwa bei Bodenanalysen auf dem Felde. The invention relates to a colorimeter, preferably for determination the current hydrogen ion concentration, for example in soil analyzes in the field.

Das Wesen der Erfindung ist darin zu erblicken, daß zylindrische Röhren, welche Vergleichslösungen enthalten, im Abstand voneinander in einem Rahmen angeordnet sind, an dem ein für die Aufnahme des die zu untersuchende Probe enthaltenden Röhrchens geeignetes Gestell, mit dem außerdem eine Lupe starr verbunden ist, verschiebbar angeordnet ist. The essence of the invention can be seen in the fact that cylindrical Tubes containing comparison solutions, spaced from one another in a frame are arranged on which a for receiving the sample to be examined containing A frame suitable for tubes, to which a magnifying glass is also rigidly connected, can be moved is arranged.

Durch diese Anordnung der Vergleichsprobe -mit der Untersuchungsprobe und die gleichzeitige Beobachtung beider mit Hilfe einer Lupe wird es dem Beobachter möglich, geringe Anderungen im Farbton zu erkennen, was nicht zutrifft, wenn das Auge beispielsweise, wie es bei einem bekannten Gerät der Fall ist, die Proben nur durch Gucklöcher wahrnehmen und vergleichen kann. This arrangement of the comparison sample with the test sample and the simultaneous observation of both with the help of a magnifying glass becomes it to the observer possible to see slight changes in hue, which is not the case if that Eye, for example, as is the case with a known device, the samples only can perceive and compare through peepholes.

In den Abbildungen, von denen die Abb. I das Gerät in Vorderansicht und Abb. 2 in Hinteransicht schaubildlich darstellt, bezeichnet I die Gesamtvorrichtung, in der die Vergleichslösungen in Röhrchen 2, 3, 4ff. nebeneinander angeordnet sind. In the illustrations of which Fig. I the device in front view and Fig. 2 shows a diagrammatic rear view, I denotes the overall device, in which the comparison solutions in tubes 2, 3, 4ff. are arranged side by side.

Die zu untersuchende Probe 7 ist mit Haltern 8, 8' in einem Schieber g angeordnet, so daß sie hinter bzw. vor den Vergleichsproben in dem Rahmen I vorbeigeführt werden kann. Mit dem Schieber g ist erfindungsgemäß die Lupe IO starr verbunden. Man hat also nur nötig, die Vorrichtung so vor das Auge zu führen, daß man durch die Lupe Io beobachten kann, wobei man die Probe an den Vergleichsröhrchen vorüberschiebt.The sample 7 to be examined is with holders 8, 8 'in a slide g arranged so that they passed behind or in front of the reference samples in the frame I. can be. According to the invention, the magnifying glass IO is rigidly connected to the slide g. So one only has to bring the device in front of the eye in such a way that one goes through the magnifying glass Io can be observed while the sample is pushed past the comparison tube.

Bei Bodenuntersuchungen auf dem Felde ist es auch ein Problem, die Trübung des Bodens bei dieser kolorimetrischen Bestimmung auszuschalten. Dies erreicht man am einfachsten dadurch, daß man etwa einen Glaswolle- oder Wattebausch durch das die zu untersuchende Probe enthaltende Röhrchen zu Boden drückt. Es werden dadurch sämtliche Trübstoffe mitgenommen, und die in ihrer Farbtiefe leicht zu vergleichende klare Lösung bleibt zurück. With soil surveys in the field it is also a problem that To switch off the turbidity of the soil with this colorimetric determination. Achieved this The easiest way to do this is to put a glass wool or cotton ball through it which pushes the tube containing the sample to be examined to the ground. It will be through it all turbid substances taken with them, and those that are easy to compare in terms of their depth of color clear solution remains.

Claims (2)

PATENTANSPRÜCHE: - I. Kolorimeter, vorzugsweise zur Bestimmung des pn-Wertes mit Hilfe von Indikatoren, dadurch gekennzeichnet, daß zylindrische Röhren, welcheVergleichslösungen enthalten, in Abstand voneinander in einem Rahmen angeordnet sind, an dem ein für die Aufnahme des die zu untersuchende Probe enthaltenden Röhrchens geeignetes Gestell, mit dem außerdem eine Lupe starr verbunden ist, verschiebbar angeordnet ist. PATENT CLAIMS: - I. Colorimeter, preferably for determining the pn value with the aid of indicators, characterized in that cylindrical tubes, which contain comparison solutions, arranged at a distance from one another in a frame are on the one for receiving the tube containing the sample to be examined suitable frame, with which a magnifying glass is also rigidly connected, displaceable is arranged. 2. Die Verwendung von Kolorimetern nach Anspruch I für trübe Flüssigkeiten, dadurch gekennzeichnet, daß vor der Messung ein Filter wie ein Wattebausch oder ein Glaswollepfropfen durch das die zu untersuchende Probe enthaltende Röhrchen gedrückt wird. 2. The use of colorimeters according to claim I for cloudy liquids, characterized in that a filter such as a cotton ball or before the measurement a plug of glass wool through the tube containing the sample to be examined is pressed.
DEP5454A 1948-10-02 1948-10-02 Colorimeter Expired DE818270C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP5454A DE818270C (en) 1948-10-02 1948-10-02 Colorimeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP5454A DE818270C (en) 1948-10-02 1948-10-02 Colorimeter

Publications (1)

Publication Number Publication Date
DE818270C true DE818270C (en) 1951-10-25

Family

ID=7360016

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP5454A Expired DE818270C (en) 1948-10-02 1948-10-02 Colorimeter

Country Status (1)

Country Link
DE (1) DE818270C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802391A (en) * 1956-02-29 1957-08-13 Franz J Maier Colorimeter
EP0359550A2 (en) * 1988-09-16 1990-03-21 Exocell, Inc. Analytic reader device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802391A (en) * 1956-02-29 1957-08-13 Franz J Maier Colorimeter
EP0359550A2 (en) * 1988-09-16 1990-03-21 Exocell, Inc. Analytic reader device
EP0359550A3 (en) * 1988-09-16 1991-05-08 Exocell, Inc. Analytic reader device
US5057275A (en) * 1988-09-16 1991-10-15 Exocell, Inc. Analytic reader device

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