Industry News
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PH meter and beaker
“The pH meter is an instrument for measuring the pH of a solution. The main body of the pH meter is a precision potentiometer. When measuring, insert the composite electrode into the measured solution, and different electromotive force will be generated due to the different acidity (hydroge...Read more -
Experimental detection of the effect of ABA on stomata closure
【principle】 Plant endogenous hormone ABA (abscisic acid) can close stomata and reduce leaf transpiration rate. Exogenous ABA also has the same effect. Weighing and microscopy can be used to directly or indirectly measure the stomata opening to test the role of exogenous ABA and deepen the under...Read more -
Determination of total root absorption area and active absorption area
【Principle】 According to the theory of plant mineral absorption, the initial absorption of solute by plants has the characteristics of adsorption, and it is assumed that a monolayer of adsorbed substances is uniformly covered on the root surface at this time, so it can be based on the amount of...Read more -
Determination of trace bismuth in lead-based alloy by atomic absorption spectrophotometer
This method is suitable for the quantitative analysis of trace bismuth in lead-based alloys, the content of bismuth ≤0.003% Reagents needed: nitric acid 1:2 solution tartaric acid analytically pure Atomic absorption conditions: Wavelength: 223.1nm Slit: 0.2nm Lamp current: 2mA Air pressure: acety...Read more -
The use of beaker in rat insulin convulsion experiment
Rat insulin convulsion test Glass Beaker,glass beakers wholesale,Beaker Glass,beaker 2000ml,500ml beaker 【Purpose request】 Understand the function of insulin to regulate blood sugar levels. 【Fundamental】 Insulin is one of the hormones that regulate the body’s blood sugar. When the insul...Read more -
Commonly used methods of bacterial culture
Commonly used methods of bacterial culture Recipe 1: beef extract agar medium 0.3g beef extract, 1.0g peptone, 0.5g sodium chloride, 1.5g agar,100ml water Add 100 ml of water to the beaker, add beef extract, peptone and sodium chloride, mark the outside of the beaker with crayons, and heat it on ...Read more -
Formation of amylase during grain seed germination
Formation of amylase during grain seed germination [principle] When the seed germinates, the activity of the hydrolase is greatly enhanced, and the organic matter stored in the cotyledon or endosperm is degraded into simple compounds under their action for the needs of seedling growth. Amylase is...Read more -
Standard procedures for the preparation of common solutions in laboratories
Standard procedures for the preparation of common solutions in laboratories 1. Purpose Ensure that the various solutions used in the experiment meet the requirements of the experiment. 2. The SOP change procedure Changes to this document can be proposed by any staff member who uses the document a...Read more -
Observing the influence of environmental factors on photosynthesis with leaf disc sink and float method
Observing the influence of environmental factors on photosynthesis with leaf disc sink and float method [Principle] The gas in the mesophyll intercellular space is removed by vacuum infiltration method, and an aqueous solution is used to make the leaf discs sink in the water. In the process of ph...Read more
