EP0528009A1 - Method for removing species containing primary amino groups from solutions - Google Patents
Method for removing species containing primary amino groups from solutionsInfo
- Publication number
- EP0528009A1 EP0528009A1 EP19920907058 EP92907058A EP0528009A1 EP 0528009 A1 EP0528009 A1 EP 0528009A1 EP 19920907058 EP19920907058 EP 19920907058 EP 92907058 A EP92907058 A EP 92907058A EP 0528009 A1 EP0528009 A1 EP 0528009A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- primary amino
- groups
- insoluble
- species
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
Definitions
- the invention relates to a method for separating primary amino-containing species from solutions and various applications of this method.
- the object of the invention is to provide a simple method for separating primary amino group-containing species from solutions, since these species frequently interfere with the determination of other species, for example secondary amino acids.
- R and R which may be the same or different, represent hydrogen or an optionally substituted hydrocarbon group (hydrocarbyl group), or together form an optionally substituted aliphatic, aromatic or heterocyclic ring or a ring system, to form a water-insoluble complex of the formula
- Tr represents the water-insoluble carrier and Sp represents the rest of the species containing primary amino groups, and removes the complex from the solution.
- the method according to the invention allows species containing primary amino groups to be removed from the solution to be investigated in one work step. This is achieved by a specific chemical reaction in which the species containing primary amino groups are covalently bound to the water-insoluble carrier containing the HS groups and are thus removed from the solution as a water-insoluble complex.
- primary amines, primary amino acids, primary amino groups-containing peptides, proteins or carbohydrates or microorganisms (eg cells, bacteria or viruses) with primary surface amino groups can be removed from the solution as primary amino group-containing species be removed.
- polymeric organic compounds e.g. polymeric carbohydrates are used which are obtainable by reacting a polymeric carbohydrate activated with an oxirane, such as agarose or sepharose, with hydrogen sulfide or an acidic sulfide.
- an oxirane such as agarose or sepharose
- hydrogen sulfide or an acidic sulfide Such carriers have already been used as solid phases in affinity chromatography for the purification of proteins (cf. Methods in Enzymology, Vol. 182, 357 to 369 (1990)); however, the proteins are not covalently bound to the solid phase.
- supports according to the invention based on a water-soluble inorganic substance can be used, which are obtainable by activating an inorganic substance containing a free OH group either (a) by treatment with an oxirane or siloxane and then with hydrogen sulfide or an acid sulfide or (b) a thiosilane.
- Preferred inorganic water-insoluble substances are silica gels or aluminum hydroxide gels. Such gels are known as intermediates in the synthesis of chiral support materials for chromatography. As dialdehydes, those can be used in which di
- R and / or R are substituted by auxochromic or bathochromic groups.
- auxochromic or bathochromic groups are substituted by auxochromic or bathochromic groups.
- Dialdehydes which are preferably used are those with aromatic rings, in particular o-phthalaldehyde or o-naphthodialdehyde
- the method according to the invention can be used as a separator in the determination of secondary amino acids, such as hydroxyprolines. These methods interfere with primary amino acids, which is why their quantitative separation before carrying out the determination is desirable.
- Hydroxyprolines are part of collagen.
- the connective tissue around the bones is destroyed, and the hydroxyprolines are found in the blood and urine.
- the method according to the invention can therefore be used to diagnose bone cancer.
- the method can also be used for the analysis of foods. For example, the collagen content of sausages can be determined.
- the method according to the invention can also be used to de-proteinize (deproteinize) liquids, in particular body fluids, such as blood and urine, or also beverages, such as beer, wine and fruit juices. Protein substances are particularly troublesome when electrodes are used to determine the electrolyte, since the electrodes are smeared by the protein substances. Furthermore, the method according to the invention can be used for germ elimination and for removing antigens.
- Another application of the method according to the invention is the determination of species containing primary amino groups in a solution.
- the procedure is followed in that the solution is reacted with an excess of a bathochromic or auxochromic substituent-containing dialdehyde and the HS-insoluble, water-insoluble carrier, the water-insoluble complex obtained is separated and the solution which is not bound in the complex is dissolved Proportion of the dialdehyde determined spectroscopically.
- the suspension is centrifuged for 2 minutes at 13,000 rpm in an Eppendorf centrifuge.
- liver sausage sample About 4 g of a well homogenized liver sausage sample are weighed to the nearest 1 mg in a 100 ml round or Erlenmeyer flask. 30 ml of hydrochloric acid are added and the solution is heated to a gentle boil and boiled under reflux for 6 hours
- the hydrolyzate is transferred quantitatively with water into a 500 ml volumetric flask, mixed with about 5 ml of petroleum spirit and filled up to the mark with water such that the petroleum gasoline layer with the fat dissolved therein is above the mark ⁇ layer removed by suction and the aqueous phase filtered into a 500 ml Erlenmeyer flask.
- a suitable dilution is prepared from the hydrolyzate so that the expected hydroxyproline concentration is in the range from 0.6 to 2.4 ⁇ g / ml. This is done by diluting 10 ml of the hydrolyzate with water in a 250 ml volumetric flask.
- the colorless supernatant is protein-free (biuret test negative).
- Example 8 200 ⁇ l of rainwater are mixed with 1 mg of o-phthalaldehyde and 300 m of the silica gel carrier from Example 2 containing HS groups and shaken for 3 minutes. A sample of the supernatant is applied to an agar culture medium and incubated at 37 ° C. in the incubator for 2 days. No bacterial growth can be determined. An untreated sample of the rain water shows strong bacterial growth after 2 days of incubation.
- Example 8 200 ⁇ l of rainwater are mixed with 1 mg of o-phthalaldehyde and 300 m of the silica gel carrier from Example 2 containing HS groups and shaken for 3 minutes. A sample of the supernatant is applied to an agar culture medium and incubated at 37 ° C. in the incubator for 2 days. No bacterial growth can be determined. An untreated sample of the rain water shows strong bacterial growth after 2 days of incubation.
- Example 8 200 ⁇ l of rainwater are mixed with 1 mg of o-phthalaldehyde
- a solution of 20 mg of o-naphtholdialdehyde in 1 ml of a 30 3 ml of acetonitrile solution (remainder of water) is mixed with 5 mg of alanine, dissolved in 1 ml of water, and with 200 mg of the silica gel carrier from Example 2 containing HS groups.
- the suspension is shaken for 3 minutes and centrifuged for 2 minutes. The extinction of the supernatant solution is measured in a photometer.
- the alanine content of the test solution can be calculated from the decrease in dialdehyde concentration.
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
Il est décrit un procédé de séparation, à partir de solutions, d'espèces contenant des groupes amino primaires, caractérisé en ce qu'on fait réagir l'espèce avec un support insoluble dans l'eau contenant des groupes HS et un dialdéhyde de formule (I), dans laquelle R1 et R2, qui peuvent être identiques ou différents, désignent un hydrogène ou un groupe hydrocarbure (groupe hydrocarbyle) éventuellement substitué, ou forment ensemble un noyau ou un système de noyau aliphatique, aromatique ou hétérocyclique éventuellement substitué, de manière à obtenir un complexe insoluble dans l'eau, répondant à la formule (II) dans laquelle Tr désigne le support insoluble dans l'eau, et Sp le reste de l'espèce contenant les groupes aminés primaires, et en ce qu'on élimine le complexe de la solution. Le procédé peut être utilisé, en tant qu'étape de séparation, pour le dosage d'aminoacides secondaires, telles que les hydroxyprolines, pour l'élimination de l'albumine dans les liquides du corps humain, pour la stérilisation de solutions aqueuses et pour le dosage spectroscopique indirect d'espèces contenant des groupes amino primaires.There is described a method of separation, from solutions, of species containing primary amino groups, characterized in that the species is reacted with a water-insoluble support containing HS groups and a dialdehyde of formula (I), in which R1 and R2, which may be identical or different, denote an optionally substituted hydrogen or a hydrocarbon group (hydrocarbyl group), or together form an optionally substituted aliphatic, aromatic or heterocyclic ring or ring system, of so as to obtain a water-insoluble complex, corresponding to formula (II) in which Tr denotes the water-insoluble support, and Sp the rest of the species containing the primary amino groups, and in that remove the complex from the solution. The method can be used, as a separation step, for the determination of secondary amino acids, such as hydroxyprolines, for the elimination of albumin in liquids from the human body, for the sterilization of aqueous solutions and for indirect spectroscopic determination of species containing primary amino groups.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4106984 | 1991-03-05 | ||
DE19914106984 DE4106984A1 (en) | 1991-03-05 | 1991-03-05 | METHOD FOR SEPARATING SPECIES CONTAINING PRIMARY AMINO GROUPS FROM SOLUTIONS |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0528009A1 true EP0528009A1 (en) | 1993-02-24 |
Family
ID=6426509
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920103807 Pending EP0508106A3 (en) | 1991-03-05 | 1992-03-05 | Process for separation of primary aminogroups containing substances from solutions |
EP19920907058 Withdrawn EP0528009A1 (en) | 1991-03-05 | 1992-03-05 | Method for removing species containing primary amino groups from solutions |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920103807 Pending EP0508106A3 (en) | 1991-03-05 | 1992-03-05 | Process for separation of primary aminogroups containing substances from solutions |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP0508106A3 (en) |
DE (1) | DE4106984A1 (en) |
WO (1) | WO1992015384A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9300912U1 (en) * | 1993-01-23 | 1993-04-29 | Macherey, Nagel & Co., 4040 Neuss, De | |
DE102006030976A1 (en) * | 2006-07-03 | 2008-01-17 | Behrens, Meinhard, Dr. | Method for the qualitative detection of added protein substances in food |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH508879A (en) * | 1970-02-17 | 1971-06-15 | Roth Marc | Method for determining ammonia and organic amino compounds and set of reagents for the implementation of this method |
US4013514A (en) * | 1972-01-04 | 1977-03-22 | Monsanto Company | Preparing a reactor containing enzymes attached to dialdehyde cellulose |
JPS54113492A (en) * | 1978-02-24 | 1979-09-05 | Sanyo Chem Ind Ltd | Preparation of glucoprotein derivative |
DE3245139C2 (en) * | 1982-12-07 | 1984-10-25 | Degussa Ag, 6000 Frankfurt | Use of polycondensation products from acrolein and formaldehyde to remove hydrogen sulfide and iron sulfide in aqueous systems |
EP0199432B1 (en) * | 1985-03-04 | 1991-05-29 | Oread Laboratories, Inc. | Assaying method for primary amines using aromatic dialdehydes |
US4837166A (en) * | 1985-03-04 | 1989-06-06 | Oread Laboratories, Inc. | Assaying method for primary amines using aromatic dialdehydes |
DE3726454A1 (en) * | 1987-08-08 | 1989-02-16 | Behringwerke Ag | POLYMERS CONTAINING THIOL GROUPS, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE |
USD430213S (en) * | 1999-10-20 | 2000-08-29 | Harrison Huang | Adhesive tape dispenser |
-
1991
- 1991-03-05 DE DE19914106984 patent/DE4106984A1/en not_active Withdrawn
-
1992
- 1992-03-05 WO PCT/DE1992/000188 patent/WO1992015384A1/en not_active Application Discontinuation
- 1992-03-05 EP EP19920103807 patent/EP0508106A3/en active Pending
- 1992-03-05 EP EP19920907058 patent/EP0528009A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO9215384A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE4106984A1 (en) | 1992-09-10 |
EP0508106A3 (en) | 1992-11-19 |
WO1992015384A1 (en) | 1992-09-17 |
EP0508106A2 (en) | 1992-10-14 |
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