double ionic polyacrylamide

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double ionic polyacrylamide

Q: Nutritional characteristics of carbohydrates and inorganic salts in vegetables: Carbohydrates include sugars, starches, cellulose and pectin substances. Its species and quantity, because of the types of food and varieties are very different.

Q: Organic chemistry extraction lab. If the KBr wasn&#39;t there I would just add HCl to protonate the NH2, but I&#39;m not sure if that will affect the KBr or the carbon chain. Both of these are in an aqueous phase.: The amine will certainly coordinate to K+, but the interaction is not very strong and hydrogen bonding from water will compete efficiently. Also, if your amine is soluble in water, you are not going to be able to isolate it by turning it into the corresponding ammonium salt.

Q: Cells in the water, inorganic salts, protein, lipid, carbohydrate and nucleic acid six words how wrong this sentence: Wrong in the compound

Q: What are minerals and trace elements?: 81 species were detected on the basis of the human body. 81 kinds of elements in the body of the arrangement is very tight combination, and more less will not work. Human anatomy found that there are 74 kinds of serum, 54 kinds of brain, 49 kinds of heart, 50 kinds of liver, thymus 18 species. They constitute the most basic unit of the human body, human life, old, sick, dead and all elements related to the body. According to the elements in the human body content is different, can be divided into macro elements and trace elements two categories. Accounting for more than 0.01% of the total body weight of the elements, such as carbon, hydrogen, oxygen, nitrogen, calcium, phosphorus, magnesium, sodium, etc., called macro elements; , Zinc, copper, manganese, chromium, selenium, molybdenum, cobalt, fluorine, etc., known as trace elements. Trace elements in the human body content is really minimal, such as zinc only the total weight of the human body of thirty-three parts per million. Iron is only sixty thousandths.

Q: Indicating the organic compounds and inorganic salts in the boiling point, melting point and solubility of what is the difference: Organic compounds are mainly covalently bonded, the mutual attraction between molecules is very weak, so its melting point, low boiling point, generally insoluble in water and soluble in organic solvents. Inorganic salts with ionic bonding, positive and negative ions electrostatic attraction is very strong, so the melting point, boiling point is very high, usually insoluble in organic solvents and soluble in water.

Q: what is the function of salts in DNA extraction?: DNA can be purified for DNA sequencing or for restriction digestion by precipitation in an alcohol/water mixture in the presence of a high concentration of inorganic salt. DNA is recovered from the aqueous solution by addition of salt to final concentrations of 0.8M LiCl, 0.3-0.5M NaCl, NaOAc, or 2.5M NH4Ac and an appropriate volume of alcohol (30%-50% final percentage isopropanol; 60%-80% final percentage ethanol), storage for a brief period of time at -20°C or -70°C, followed by centrifugation. Subsequent desalting of the DNA pellet involves rinsing in 70% alcohol, recentrifugation and re-suspension in appropriate buffer.

Q: is table salt organic or inorganic, why?: if its found in nature its organic if its made by man its synthetic. table salt is found in the ocean so i guess it would be organic.

Q: As if there are two kinds of nitrogen, phosphorus and potassium, hoping to get answers and explain their respective roles: According to the study, three essential conditions for determining the essential nutrient elements of the plant are: (1) This element is essential for the vegetative growth and reproductive growth of the plant. When it is completely absent, the plant can not complete its life cycle; The need for such elements is specific, other elements can not replace its role, the lack of plants will be a special lack of symptoms, only to meet this element, the symptoms will be eliminated; ⑧ this element must be in the plant from the body Direct effect, not just to improve the plant growth environment indirect role.

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