Exact(20)
Aliquots containing 0.50 18.50 μg mL−1 of standard KT (100 μg mL−1) were transferred quantitatively to 10 mL calibrated standard flasks.
An accurately weighed quantity equivalent to 20 mg ETD was dissolved in 20 mL of methanol and transferred to a 100 mL calibrated flask.
Samples of CMV supplemented with rice straw (200 mg) were weighed into 100 ml calibrated glass syringes with pistons lubricated with Vaseline.
100 μg mL-1 aliquots of the standard solutions (A: 0.05 0.8 and B: 0.1 1.0 mL) were transferred to a series of 10 mL calibrated flasks.
For each sample, an accurately weighed 0.5 g of the dried powder was introduced into a 50 mL calibrated flask and 20 mL of 70% methanol were added.
A 100 mL 5.2 × 10−4 M MCP solution was prepared by dissolving 0.0200 g of MCP (Merck) in 25 mL ethanol and diluted with distilled water in a 100 mL calibrated flask.
Similar(40)
Three portions were accurately weighed and transferred into 100-mL calibrated flasks.
One milliliter of CIN solution containing 3 - 100 μg/ml was transferred into separate 10-ml calibrated flask.
The filtrates were collected in two separate 50-mL calibrated flasks and diluted to the mark with respective solvents.
An accurately weighed portion equivalent to 50 mg of LND was transferred into a 50-mL calibrated flask containing ~ 40 mL of methanol.
An accurately weighted portion equivalent to 150 mg MET, 100 mg DF and 20 mg MEH were separately transferred into 100-mL calibrated measuring flask and then 75 mL methanol was added.
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