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Hemoglobin

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Hemoglobin  Principle Blood is mixed with an   acid  solution so tha t  hemoglobin   is converted to brown-colored acid hematin. This is then diluted with water till the brown color matches that of the brown glass standard. The hemoglobin value is read directly from the scale. Equipment (1) Sahli’s hemoglobinometer: This consists of Sahli’s graduated hemoglobin tube (marked in grams and percent) and a comparator with a brown glass standard. (2) Sahli’s pipette or hemoglobin pipette (marked at 20 μl or 0.02 ml). (3) Small glass rod (stirrer). (4) Dropping pipette. Reagents (1) N/10 hydrochloric acid (2) Distilled water Specimen:  EDTA-anticoagulated venous blood or blood obtained by skin puncture. Method (1) Place N/10 hydrochloric acid into Sahli’s graduated hemoglobin tube up to the mark of 2 grams. (2) Take blood sample in Sahli’s pipette exactly up to 20 μl mark. Blood adhering to the exterior of the pipette is wiped a...
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Blood Group Test

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Blood Group Test  Blood typing procedure: 1. Mix! First mix the patient's blood with three different reagents including either of the three different antibodies, A, B or Rh antibodies! 2. Look for agglutination! Then you take a look at what has happened. In which mixtures has clumping, or agglutination, occurred? The agglutination indicates that the blood has reacted with a certain antibody and is therefore not compatible with blood containing that kind of antibody. If the blood does not agglutinate, it indicates that the blood does not have the antigens binding the special antibody in the reagent. 3. Figure out the ABO blood group! Start by taking a look at the test tubes containing A and B antibodies. Has the blood agglutinated in either of these two tubes? No agglutination in test tube A, indicates that the patient's red blood cells do not have A antigens. Agglutination in the tube containing B antibodies indicates that the patients' red blood ...
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Oil Peller Machine

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Oil Peller Machine Peanut oil press machine is a kind of screw oil press. Peanut oil press functions through mechanical pressure that oil can be squeezed out of oil crops in high pressure to achieve  Peanut oil press machine is a kind of screw oil press. Peanut oil press functions through mechanical pressure that oil can be squeezed out of oil crops in high pressure to achieve the purpose of oil pressing. Squeezed crude oil is edible after being filtered by the vacuum oil filter.
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