73. In determining the lead content in a biological obj

Affiliates: 0,01 $how to earn
Pay with:
i agree with "Terms for Customers"
Sold: 1 last one 101 days ago
Refunds: 0

Uploaded: 05.08.2019
Content: 73.rar 8,28 kB

Product description

73. In determining the lead content in a biological object, the “standard additive method” was used. For analysis, 50.00 ml of the test solution was taken and transferred to two separatory funnels. In one of them added 0.50 ml of a standard lead solution with a concentration of 0.060 g / l. Lead was determined by the extraction method with diethyl ammonium diethyldithiocarbamate in chloroform. The lead content in the organic phase was determined by the atomic absorption method with an emission line at 283.3 nm. Determine the concentration (mg / l) of lead in the analyzed object, if the absorption of the lead extract in the analyzed solution and in the solution with the addition of a standard lead solution is equal to 0.300 and 0.620, respectively.

Additional information

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.


No feedback yet.
In order to counter copyright infringement and property rights, we ask you to immediately inform us at support@plati.market the fact of such violations and to provide us with reliable information confirming your copyrights or rights of ownership. Email must contain your contact information (name, phone number, etc.)