Test kit for simultaneously detecting several types of residues
AssigneeEcolab Inc.
InventorsBernhard Meyer, Thomas Tyborski
Life of this patent
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Abstract
Process for differentiating the nature of residues on hard surfaces. The invention furthermore relates to the use of the process according to the invention for monitoring residues in the foodstuffs, pharmaceuticals or cosmetics industry and in food-processing facilities. The invention also relates to articles for the simultaneous detection of at least two different types of residues, which articles are equipped with one or more adsorbents suitable for absorbing residues.
Claims35
1-12. (Cancelled).
A method for detecting the presence of at least two different residues on a hard surface comprising the following steps:
- a providing an article;
- b. providing at least one adsorbent on the article, the adsorbent having a chemical substance capable of reacting with the residues to form a visually discernible color;
- c. contacting the adsorbent with the residues on a hard surface;
- d. adsorbing the residues onto the adsorbent;
- and
- e. forming a visually discernible color as a result of the reaction of the residues with the chemical substance.
A method for detecting the presence of at least two different residues on a hard surface comprising the following steps:
- a providing an article;
- b. providing at least one adsorbent on the article;
- c. contacting the adsorbent with the residues on a hard surface;
- d. adsorbing the residues onto the adsorbent;
- e. applying to the adsorbent a chemical substance capable of reacting with the residues to form a visually discernible color;
- and
- f. forming a visually discernible color as a result of the reaction of the residues with the chemical substance.
A system for detecting the presence of at least two different residues on a hard surface, the system comprising:
- a. at least two different residues, wherein the residues are selected from the group consisting of a fat, protein, carbohydrate, and mixtures thereof;
- b. an article;
- and
- c. at least one adsorbent located on the article, wherein the adsorbent has a chemical substance capable of reacting with the residues to form a visually discernable color, and the chemical substance is selected from the group consisting of ninhydrin, Coomassie blue, Folin reagent, biuret reagent, a-naphthol, diphenylamine, aniline, iodine, lipase, fluorescent dyes, and mixtures thereof.
Dependencies are inferred from the claim text.