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Suche nach erfolgreich umgesetzten Alternativen

Die SUBSPORTplus Datenbank der Fallbeispiele enthält Beschreibungen erfolgreicher Substitutionsbeispiele sowie Informationen über alternative Stoffe und Technologien direkt aus Unternehmen, der Literatur oder anderen Quellen. Die Fallbeispiele dienen als Inspiration und Anregung für die Substitution. Die Alternativen werden stetig weiterentwickelt. Prüfen Sie daher im Einzelfall, ob eine Alternative für Ihre Anwendungen und Zwecke geeignet ist. Sollten Ihnen weitere relevante Informationen bekannt sein, die nicht im aktuellen Fallbeispiel genannt werden, nehmen Sie Kontakt mit SUBSPORTplus auf.

Die Datenbank kann mit Hilfe der Freitextsuche durchsucht werden. Am besten geeignet sind: Stoffnamen und andere Stoffidentifikatoren (EG- und CAS-Nummer). Die Suche kann nach erster Eingabe in Sektor-, Funktion- und Prozesskategorien verfeinert werden.

Alle Fallbeispiele wurden mit der SUBSPORTplus Methodik bewertet. Beachten Sie die Hinweise in der SUBSPORTplus Methodik, um die Informationen bestmöglich zu nutzen!

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Resultate 41 bis 49 von insgesamt 49 für Suchbegriff

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Suchergebnisse

Alternative method for determining formaldehyde in commercial samples

A spectrophotometric method using magnesium sulphate instead of concentrated sulphuric acid is proposed for the analysis of formaldehyde in disinfectants and hair products.

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Assessment, development and demonstration of alternatives for n-methyl pyrrolidone

This is a report from a project investigating the alternatives to n-methyl pyrrolidone. The investigated uses for the substance are stripping of paint and furniture, precision cleaning, pharmaceutical penetration enhancer and in personal care products. For stripping and precision cleaning a more thorough alternatives assessment including function and cost was performed, while for the pharmaceutical and personal care applications it was only stated that corresponding products exists without having to use this substance. For stripping the suggested alternatives were based on benzyl alcohol and/or acetone, while for precision cleaning organizational changes were suggested.

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Improvement in biodegradability and pharmaceutical properties of cytostatics for tumour treatment.

Certain pharmaceuticals including some cytostatics are carcinogenic, mutagenic, teratogenic and fetotoxic. Cytostatics and their metabolites are excreted by patients into waste water. In laboratory testing, the frequently used isomeric anti-tumour agent Ifosfamide was shown to be non- biodegradable. It is not eliminated in municipal sewage treatment plants, and therefore passes into the effluent. Structural modified compounds like Glufosfamide are still active against tumours, and in contrast to Ifosfamide are inherently biodegradable.

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Enzymatic processes versus chemical processes in the preparation of 6-aminopenicillanic acid

This case story describes how using enzymatic processes instead of chemical processes may result in substitution of hazardous substances. Fewer steps during synthesis and low solvent use are the major benefits. Energy savings, fewer safety and disposal issues, and improved product quality also lead to cost benefits.

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The cleaning of old frescoes with a bacterial suspension

This case story presents the use of Pseudomonas stutzeri for the biocleaning of mural paintings, for the purpose of eliminating remains of organic material from old restorations or insoluble saline efflorescence. Traditional techniques used in cleaning involve: solvents, spirits, alkalis, acids and soaps, as well as simple mechanical actions (ex. scraping with a scalpel).

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Alternative lead-free method to the analysis of sucrose

Conventional polarization analysis uses lead acetate as clarifying agent for the sugar juice. An alternative method using near infrared polarimetry that does not need lead acetate was tested and provided good quality results.

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Natural alternative to phenolphthalein prepared and used in school laboratory

Phenolphthalein is used in laboratories as indicators of acidity or alkalinity. Because it is considered a possible carcinogen, alternative substances or methods are recommended. A primary school laboratory decided to produce its own safer pH indicator, using red cabbage juice instead of phenolphthalein.

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An alternative to diaminobenzidine for the enhancement of blood fingerprints

Diaminobenzidine (DAB)is classified as EU carcinogen 1B. Its use in forensic fingerprints can be substituted by 2,2'-azino-di-[3-ethylbenzthiazolinesulfonate(6)] diammonium salt (ABTS)that gives good results according to a research study.

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Copper sulphate as alternative to mercury monoxide catalyst in the Kjeldahl reaction

The Kjeldahl reaction developed to analyse nitrogen content of organic substances has been reviewed many times to optimise it and make safer for the users. A comprehensive handbook on various Kjeldahl analyses includes a chapter on catalysts that presents alternatives to mercury monoxide.

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