WO1998018327A1 - Blend of appropriate preservative agents for analysis instruments with ion-selective electrodes - Google Patents
Blend of appropriate preservative agents for analysis instruments with ion-selective electrodes Download PDFInfo
- Publication number
- WO1998018327A1 WO1998018327A1 PCT/EP1997/006011 EP9706011W WO9818327A1 WO 1998018327 A1 WO1998018327 A1 WO 1998018327A1 EP 9706011 W EP9706011 W EP 9706011W WO 9818327 A1 WO9818327 A1 WO 9818327A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oxaban
- ion
- preservative
- reagents
- selective electrodes
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group —CO—N<, e.g. carboxylic acid amides or imides; Thio analogues thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/74—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,3
- A01N43/76—1,3-Oxazoles; Hydrogenated 1,3-oxazoles
Definitions
- the determination of electrolytes with the aid of ion-selective electrodes is preferably carried out in flow systems which are very susceptible to any type of contamination.
- the growth of microorganisms within the system leads to falsification of the analysis results and, with increasing growth of microorganisms, to inactivation of the electrodes. It is therefore desirable to preserve the reagents used in such flow systems.
- the object of the present invention was therefore to provide preservatives which can be used worldwide and are compatible with all electrodes, and whose preservative properties cover the largest possible spectrum of germs and minimize the formation of resistant germs.
- a preservative for reagents for the diagnostic determination of electrolytes with the aid of ion-selective electrodes, which contains at least one compound which releases formaldehyde, optionally in combination with chloroacetamide, as the active ingredient.
- Formaldehyde releasers have the great advantage over the use of formaldehyde itself that formaldehyde, usually in small amounts, is only formed in the reagent, which in turn is consumed when attacking microbes, which is why only small amounts of formaldehyde are always present in solution.
- formaldehyde releasers are preferred which only release formaldehyde in small amounts and slowly.
- Compounds of formula I are particularly preferred
- R. and R 2 represent a branched or unbranched alkyl, alkenyl or alkynyl group with 1 to 6 C atoms, which may optionally contain heteroatoms, and R 3 H or a branched or unbranched alkyl, alkenyl or Alkynyl group having 1 to 6 carbon atoms, where one of R ⁇ and R 2 may also form a further ring closure with R 3 .
- Particularly preferred compounds in the context of the present invention are oxaban A * and oxaban E * * (* 4,4-dimethyl-1,3-oxazolidine, * *
- Oxaban E in particular shows a very good preservative effect when used alone.
- a combination with chloroacetamide can also lead to an expansion of the spectrum of activity and an increase in activity for Oxaban E.
- the preservatives according to the invention in a concentration which can be used for the electrodes without problems, not only have a biocidal action against a large spectrum of different germs, but at the same time have no negative influence on the life of the electrodes.
- the consumer contains The preservative in a concentration such that chloroacetamide in a concentration of 0.1 to 0.5 mg / ml or / and Oxaban E in a concentration of 0.1 to 3 mg / ml or / and in the reagents to be preserved Oxaban A is present in a concentration of 0.2 to 1 mg / ml.
- a concentrate of the preservative with approximately 1 to 100 times the concentration of the ingredients can also be used particularly advantageously.
- This concentrate can then be introduced into the reagents to be preserved without significantly changing the concentration of the compounds contained therein. With the stated final concentrations for the reagents to be preserved, there is no fear of any negative effects on the electrodes.
- Another object of the present invention is a reagent for the diagnostic determination of electrolytes with the aid of ion-selective electrodes, which contains a preservative according to the invention.
- the preserved reagent according to the invention preferably has a pH of 7.0 to 8.2. Within this pH range, the electrodes are not negatively influenced while the preservatives work optimally.
- Figure 4 finally shows an even lower concentration of both preservatives, which also prevents the germs from growing.
- FIG. 5 shows only the preservation with one of the two preserving components, namely with 0.5 mg oxaban A. While a very strong sterilizing effect was visible with this concentration oxaban in combination with CAA in FIG. 2, with oxaban A alone such a strong effect cannot be demonstrated in the concentration of 0.5 mg / ml.
- Figures 6 to 14 show the effect of different preservatives on the three types of electrodes. It can be seen from this that Oxaban A, like CAA and Oxaban E, has no effects on the electrodes in the area of use preferred according to the invention, whereas other preservatives, which are also listed in Table 1, have negative effects, at least in the amount required for these preservatives Areas of application. Table 1
- Figures 1 5 to 1 9 show the preservative effect of Oxaban E in various concentrations and in combination with CAA.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52006398A JP2001503515A (en) | 1996-10-30 | 1997-10-30 | Preservative mixture suitable for analyzers with ion-selective electrodes |
AU53150/98A AU718943B2 (en) | 1996-10-30 | 1997-10-30 | Suitable preservative mixture for analyzers with ion- selective electrodes |
CA002268928A CA2268928A1 (en) | 1996-10-30 | 1997-10-30 | Blend of appropriate preservative agents for analysis instruments with ion-selective electrodes |
EP97950054A EP0944316A2 (en) | 1996-10-30 | 1997-10-30 | Blend of appropriate preservative agents for analysis instruments with ion-selective electrodes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19643927.2 | 1996-10-30 | ||
DE1996143927 DE19643927A1 (en) | 1996-10-30 | 1996-10-30 | Suitable preservative mix for analyzers with ion-selective electrodes |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998018327A1 true WO1998018327A1 (en) | 1998-05-07 |
WO1998018327B1 WO1998018327B1 (en) | 1998-06-25 |
Family
ID=7809678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/006011 WO1998018327A1 (en) | 1996-10-30 | 1997-10-30 | Blend of appropriate preservative agents for analysis instruments with ion-selective electrodes |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0944316A2 (en) |
JP (1) | JP2001503515A (en) |
AU (1) | AU718943B2 (en) |
CA (1) | CA2268928A1 (en) |
DE (1) | DE19643927A1 (en) |
WO (1) | WO1998018327A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2218348A1 (en) * | 1972-04-15 | 1973-10-31 | Henkel & Cie Gmbh | USE OF BICYCLIC OXAZOLIDINES AS ANTIMICROBIAL ACTIVE INGREDIENTS |
DE2512980A1 (en) * | 1974-05-13 | 1975-12-04 | Commercial Solvents Corp | OXAZOLIDINS, METHOD FOR THEIR MANUFACTURE AND THEIR USE |
US5464850A (en) * | 1991-10-04 | 1995-11-07 | Ciba Corning Diagnostics Corp. | Synergistic preservative systems for chemistry reagents |
-
1996
- 1996-10-30 DE DE1996143927 patent/DE19643927A1/en not_active Withdrawn
-
1997
- 1997-10-30 WO PCT/EP1997/006011 patent/WO1998018327A1/en not_active Application Discontinuation
- 1997-10-30 AU AU53150/98A patent/AU718943B2/en not_active Ceased
- 1997-10-30 JP JP52006398A patent/JP2001503515A/en active Pending
- 1997-10-30 EP EP97950054A patent/EP0944316A2/en not_active Withdrawn
- 1997-10-30 CA CA002268928A patent/CA2268928A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2218348A1 (en) * | 1972-04-15 | 1973-10-31 | Henkel & Cie Gmbh | USE OF BICYCLIC OXAZOLIDINES AS ANTIMICROBIAL ACTIVE INGREDIENTS |
DE2512980A1 (en) * | 1974-05-13 | 1975-12-04 | Commercial Solvents Corp | OXAZOLIDINS, METHOD FOR THEIR MANUFACTURE AND THEIR USE |
US5464850A (en) * | 1991-10-04 | 1995-11-07 | Ciba Corning Diagnostics Corp. | Synergistic preservative systems for chemistry reagents |
Also Published As
Publication number | Publication date |
---|---|
AU5315098A (en) | 1998-05-22 |
EP0944316A2 (en) | 1999-09-29 |
JP2001503515A (en) | 2001-03-13 |
AU718943B2 (en) | 2000-05-04 |
CA2268928A1 (en) | 1998-05-07 |
DE19643927A1 (en) | 1998-05-07 |
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