DE476956C - Production of a completely heavy metal-free sodium borate buffer solution - Google Patents

Production of a completely heavy metal-free sodium borate buffer solution

Info

Publication number
DE476956C
DE476956C DEK104618D DEK0104618D DE476956C DE 476956 C DE476956 C DE 476956C DE K104618 D DEK104618 D DE K104618D DE K0104618 D DEK0104618 D DE K0104618D DE 476956 C DE476956 C DE 476956C
Authority
DE
Germany
Prior art keywords
sodium borate
heavy metal
borate buffer
production
buffer solution
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
DEK104618D
Other languages
German (de)
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.)
Schering Kahlbaum AG
Original Assignee
Schering Kahlbaum AG
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 Schering Kahlbaum AG filed Critical Schering Kahlbaum AG
Priority to DEK104618D priority Critical patent/DE476956C/en
Application granted granted Critical
Publication of DE476956C publication Critical patent/DE476956C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00—Boron; Compounds thereof
    • C01B35/06—Boron halogen compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00—Boron; Compounds thereof
    • C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
    • C01B35/10—Compounds containing boron and oxygen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B35/00—Boron; Compounds thereof
    • C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
    • C01B35/10—Compounds containing boron and oxygen
    • C01B35/12—Borates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Description

Herstellung einer völlig schwermetallfreien Natriumborat-Pufferlösung Die Bedeutung völlig schwermetallfreier Natriumborat-Pufferlösungen erhellt aus ihrer Anwendung zum Nachweis geringster Metallmengen, z. B. im Serum oder anderen physiologischen Flüssigkeiten.Preparation of a completely heavy metal-free sodium borate buffer solution The importance of completely heavy metal-free sodium borate buffer solutions becomes clear their use to detect the smallest amounts of metal, e.g. B. in serum or others physiological fluids.

Es bat sich gezeigt, daß man eine völlig schwermetallfreie Natriumborat - Pufferlösung erhält, wenn man die übliche Lösung mit geringen Mengen Bariumchlorid versetzt, so daß ein geringer Niederschlag von Bariumborat entsteht. Dieser Niederschlag reißt praktisch alle Schwermetalle mit, er wird so oft wiederholt, bis die Lösung weniger als 3 X i o - mg Schwermetalle in 2 ccm Lösung enthält.It has been shown that you can get a completely heavy metal-free sodium borate - Buffer solution is obtained by using the usual solution with small amounts of barium chloride added so that a small precipitate of barium borate is formed. This precipitate carries away practically all heavy metals, it is repeated until the solution contains less than 3 X i o - mg heavy metals in 2 ccm solution.

Beispiel 6-- g Borsäure und 15 g Ätznatron werden zu 11 gelöst. Der Lösung wird i g Bariumchlorid in io ccm Wasser unter Schütteln zugesetzt. Nach zweitägigem Stehen im Eisschrank wird von dem entstandenen Bariumboratniederschlag abgegossen und die Lösung vierzehn Tage bei Zimmertemperatur sich selbst überlassen. Es entsteht ein feiner Nebel von Bariumborat, der die Schwermetallsalze bis zu der oben angegebenen Größenordnung mitreißt.Example 6-- g of boric acid and 1 5 g of sodium hydroxide are dissolved to 1. 1 1 liter of barium chloride in 10 cc of water is added to the solution with shaking. After standing in the refrigerator for two days, the barium borate precipitate that has formed is poured off and the solution is left to stand for fourteen days at room temperature. A fine mist of barium borate is created, which entrains the heavy metal salts up to the order of magnitude given above.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung völlig Natriumborat - Pufferlösungen, dadurch gekennzeichnet, daß man zu den gewöhnlichen Natriumborat-Pufferlösungen eine geringe Menge Bariumcblorid zusetzt, die Lösungen sich selbst überläßt und dann von den entstandenen Niederschlägen trennt. .PATENT CLAIM: Process for the production of completely sodium borate buffer solutions, characterized in that the usual sodium borate buffer solutions are used a small amount of barium chloride is added, the solutions are left to their own devices and then separates from the precipitates formed. .
DEK104618D 1927-06-09 1927-06-09 Production of a completely heavy metal-free sodium borate buffer solution Expired DE476956C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK104618D DE476956C (en) 1927-06-09 1927-06-09 Production of a completely heavy metal-free sodium borate buffer solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK104618D DE476956C (en) 1927-06-09 1927-06-09 Production of a completely heavy metal-free sodium borate buffer solution

Publications (1)

Publication Number Publication Date
DE476956C true DE476956C (en) 1929-05-28

Family

ID=7240471

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK104618D Expired DE476956C (en) 1927-06-09 1927-06-09 Production of a completely heavy metal-free sodium borate buffer solution

Country Status (1)

Country Link
DE (1) DE476956C (en)

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