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Showing posts with the label immunohisto

immunohisto

Do you believe in practice makes perfect? I do. So far I have been satisfied with the progress of my immunohisto work. Though the staining is not first class but it is there. Whenever you do immunohisto dont forget your control, especially positive control. You will have at least peace of mind knowing that your technique is correct because the conrol stain positive despite 'no staining' seen on your sample. So far i have made some changes in cluding reducing exposure to the DAB chromogen for 5 minues only instead of 10. This results in less back ground staining. Further more unlike what is stated in the pamphlet, mixed DAB doesnt lst very long, after 3 or 4 days, clumps appear and this affect staining. Thus I have to mix smaller volume of substrate and the chromogen. I cant stain many slides at one time. The most i think is 8 slides of aorta plus 1 positive and 1 negative. Even that need to be staggered as the slide cant be left long on air as it will affect staining. Hope I l...

immunohisto

Repeat similar step dilution 1/100 1/50 low ph 6 antigen retrieval solution for viewing cm

immunohisto 5th

Immunohisto. Friday 11/1/08 The same steps on thursday repeated microwave antigen retrieval method

Immunohisto -d4

Immunohisto 9hb. Jan 2007, wednesday Today's session used microwave method for antigen retrieval. Sample: human tonsil Dilution: 1/100, 1/50, negative control Antigen retrieval solution: Trizma base + EDTA at pH 9.0(change pH with NaOH 1 M) microwave: medium high, 15 minute, temp 95degree C, slides submerge in ARS in microwave safe container H2O2 : 5 min primary 1 h secondary 30 min DAB 10 min Hx 30s dehydration; alcohol 70,80,90,100x2, xylene x2 ATRS has been used 3 times so far with water bath incubation method