Procedures for preparing measuring instruments for chemical analysis.

Abstract

OCR 10KL (19 / 02 / 2568) The procedure for preparing measuring instruments for chemical analysis involves preparing the plates. Molded starch, prepared from crude starch powder and water, is intended for the production of measuring devices. Using starch as a component for chemical analysis, which can be adapted for testing. The quantity of the substance of interest can be measured by comparing it to a standard color, and it can be... Starch is used as an alternative natural material for preparing measurement devices for analysis. Chemically biodegradable and environmentally friendly.

Claims

OCR 10KL (13 / 11 / 2568) 1. The procedure for preparing measuring equipment for chemical analysis, which involves the following steps: a. Mix the raw starch powder with water at a temperature of 25-35 degrees Celsius in a ratio of 10-50% by weight. Add the ingredients by volume and mix thoroughly for 5-15 minutes, or until a homogeneous mixture is formed. Starch that has swelled at this stage. B. Heat the puffed starch pellets from step A to a temperature of 60-90 degrees Celsius and then... It is homogeneous by stirring constantly, resulting in gelatinized starch product. At this stage C. Pour the starch gelatinize from step B onto a smooth, insoluble surface. Denize to a thickness of 1-3 millimeters and leave until the starch gelatinizes to a temperature of 25-35 degrees Celsius. Celsius causes starch to rehydrate at this stage. D. Remove moisture from the rehydrated starch from step C until it reaches a moisture content of 40-55 percent. The resulting measuring equipment will be used for chemical analysis using starch as a component.

2. Procedure for preparing measuring instruments for chemical analysis under Claim 1, where crude starch powder... You can choose from rice, corn, cassava, or potatoes, either individually or in a mixture of both. Go up there.

3. Procedure for preparing measuring instruments for chemical analysis under claim 2, whereby crude starch powder. The best ingredient is rice.

4. Procedures for preparing measuring instruments for chemical analysis pursuant to claim 1 or 2, where A smooth, non-water-soluble backing surface can be selected from materials such as tile, glass, metal, paper, or plastic.

5. Procedures for preparing measuring instruments for chemical analysis under claim 4, which states: The best non-water-soluble, smooth surface covering is plastic.

6. Procedures for preparing measuring instruments for chemical analysis according to any one of claims 1-5. This involves additionally fixing one or more test solutions onto a specific part. One of the measuring devices for chemical analysis, with a volume-to-surface area ratio of 10-50. microliters per square centimeter

Images