Recommended: The preparation of commonly used solutions in the laboratory.

< "text-align: left;" > called Trypan blue powder 0.3 grams, dissolved in 100 ml of physiological salt water, heated to make it completely dissolved, with filter paper"> filterslag, Store at room temperature in a bottle.

(iii)0.5% phenol red indicator

phenol red 0.5g

0.1N (0.4%) NaOH 15ml

double steamed water 85 ml

places 0.5 grams of phenol red in the research, slowly adds 0.1NNaOH solution side grinding, and continuously sucks out the dissolved phenolic erythropoies until all dissolved, then adds 85 ml of bisfurent water, color is deep red, filtered by coarse filter paper to use, room temperature.

(4)5.6% NaHCO3 solution

said NaHCO35.6 g, dissolved in 100ml distilled water, stored at room temperature (if required can also be 10 pounds 15 minutes autocultension, 4 degrees C refrigerator storage)

(5)10 sg/ml autumn daffodils

autumn daffodils lOmg

physiological saline 100ml

is packed in a tea-colored bottle for storage fluid and stored in a refrigerator at 4C. Take 1 ml of storage fluid and 9 ml of physiological saline when you dump it.

(6)0.4% KCl-0.4% Sodium citrate low seepage

mixes 0.4% KCl and 0.4% sodium citrate in equal amounts, room temperature can be stored.

(seven) 2% sodium citrate

said sodium citrate 2 grams, plus 100 ml of double steamed water, room temperature preservation.

(eight) 0.2% methylan dye