Biochemical Technology Topics: Identification of Tannin Compounds

1. Preparation of test solution:
Take gallnut (including hydrolyzable tannin), catechu (containing condensed tannin), gallic acid (purine tannin extract), a small amount (about 0.1 g) in a large test tube, add about 10ml of distilled water, heat to boil, Filtration, the filtrate was tested as follows:
2. General reaction of enamel (identification of enamel and pseudo sputum)
(1) Sensory test: Take the prepared enamel and pseudo enamel solution, taste the taste, and check whether the solution is acidic reaction with litmus paper.
(2) Ferric chloride reaction: Take 1~2ml of the prepared enamel solution (gallium solution or catechin solution) and pseudo sputum solution (food acid solution), respectively add ferric chloride test solution, and produce enamel Green or blue-black reaction or precipitation; pseudo-enamel produces a blue reaction.
(3) Precipitating protein reaction: Take 1~2ml of each of the sputum solution and the pseudo sputum solution, respectively, into a few drops of gelatin solution, and the sputum technique immediately produces a precipitation reaction.
(4) Alkaloid reaction: Take 1~2ml of enamel solution and pseudo enamel solution, respectively, add 0.1% aqueous solution of caffeine, and the enamel solution will produce a precipitation reaction, and the pseudo enamel will not produce a precipitation reaction.
3. Identification of the difference between hydrolyzable hydrazine and condensed tannin
(1) Eosin reaction: Take a gallnut infusion (containing hydrolyzable tannin), 2 ml of catechu infusion (containing condensed tannin), add 0.5 ml of hydrochloric acid, and boil for about 30 minutes. The hydrolyzable tannin does not precipitate, and the condensed tannin has a red precipitate.
(2) Ferric chloride reaction: take 1~2ml of gallnut infusion and catechu immersion, add several drops of ferric chloride test solution, hydrolyze enamel blue or black blue reaction, condensate tannin A blackish green reaction.
(3) Bromine water reaction: Take 1~2ml of the infusion solution of the gallnut infusion solution, and add a few drops of bromine water respectively to hydrolyze the shoe cap without causing precipitation reaction, and the condensation enamel produces precipitation.
(4) Lime water reaction: Take 1~2ml of gallnut infusion and catechu infusion, add several drops of fresh lime water respectively, hydrolyze the enamel to appear blue-grey precipitate, and condense tannin to form brown precipitate.
(5) Reaction with lead acetate in acetic acid solution: Take 1~2ml of gallnut infusion and catechu infusion, add several drops of acetic acid solution, shake and then add several drops of lead acetate solution, which can hydrolyze tannin to produce flocculent Precipitation, condensation of tannins without precipitation.

Silicone Manual Resuscitator

Silicone Manual Resuscitator is a hand-held medical device commonly used for medical emergencies when the patient's breathing is insufficient or has ceased completely. Bag valve mask ventilation is an essential emergency skill, which is mostly the best option for airway management


Application

When the accident occurs, especially difficulty in breathing or the need to improve patient use of supplementary oxygen.
Portable resuscitator, the first time in first aid and emergency use, you can quickly oxygen or unconscious persons CPR-BLS (the
primary life-support) to facilitate the ready to immediately put into use, greatly increased hope of survival.

Features&Benefit

Ø It is semi-transparent and comes with a pressure limitation valve for patient safety

Ø A textured surface ensuring a firm grip and providing effective ventilation.

Ø Patient connector is 22/15mm.

Ø 100% latex free.

Ø It is made of medical grade PVC/Silicone

Ø Three size are available,suitale for adult,child and infant.


Silicone Manual Resuscitator,Resuscitator Ambu Bag,Emergency Silicone Resuscitator Kit,Reusable Manual Resuscitator

Hangzhou Trifanz Medical Device Co., Ltd , https://www.cfzmeds.com