April 20, 2019, 02:48:44 PM
Forum Rules: Read This Before Posting


Topic: Calculation the power level of sonication  (Read 8521 times)

0 Members and 1 Guest are viewing this topic.

Offline sanderol

  • Regular Member
  • ***
  • Posts: 41
  • Mole Snacks: +2/-1
Calculation the power level of sonication
« on: March 24, 2009, 12:06:54 PM »
Don't really know where to post this, so move if necessary.

From an article I use I quote:

'The solution was sonicated for 5h at a power level of 3 W'

How do I get the power level of the sonication I get in my ultrasonic bath? I only know the frequency it uses (40kHz). Anybody knows this?

Thnks...

Offline Vette Freak

  • DNA Analyst
  • Chemist
  • Regular Member
  • *
  • Posts: 19
  • Mole Snacks: +8/-8
  • Gender: Female
  • Go Terps!
Re: Calculation the power level of sonication
« Reply #1 on: March 24, 2009, 12:50:09 PM »
If your sonicator is fixed-frequency, the power output should probably be reported in the specifications for that model.  This may be on the sticker with the serial number or you might find it in the manual.
"Great spirits have always encountered violent opposition from mediocre minds."
Albert Einstein

Offline sanderol

  • Regular Member
  • ***
  • Posts: 41
  • Mole Snacks: +2/-1
Re: Calculation the power level of sonication
« Reply #2 on: March 24, 2009, 05:37:45 PM »
Thanks, I will give that another try then, it was the first thing I did, but was not able to find the manual :P

Offline Vette Freak

  • DNA Analyst
  • Chemist
  • Regular Member
  • *
  • Posts: 19
  • Mole Snacks: +8/-8
  • Gender: Female
  • Go Terps!
Re: Calculation the power level of sonication
« Reply #3 on: March 24, 2009, 05:46:07 PM »
I've inherited some equipment without manuals, but I can usually find it online.  Try looking online on the manufacturer's website and a lot of times they will have the manuals or specifications posted.
"Great spirits have always encountered violent opposition from mediocre minds."
Albert Einstein

Offline sanderol

  • Regular Member
  • ***
  • Posts: 41
  • Mole Snacks: +2/-1
Re: Calculation the power level of sonication
« Reply #4 on: March 25, 2009, 12:51:22 PM »
So I found the output to be 70 W. Which is very high compaired to the article (3 W). So I send an email to the manufacturer, they replied:

The power of the machine will not give you the power applied to your samples, since you do not know the efficiency of your machine. This is not determined, and there is no good way to determine this. Several normalisation-institutes have been looking for years to determine this.

So now im just wondering how the authors came up with the number.


Offline DrCMS

  • Chemist
  • Sr. Member
  • *
  • Posts: 1229
  • Mole Snacks: +203/-80
  • Gender: Male
Re: Calculation the power level of sonication
« Reply #5 on: March 25, 2009, 02:48:48 PM »
Was the orginal work done with an ultrasonic probe in a Suslick flask rather than an unltrasonic bath?

Offline sanderol

  • Regular Member
  • ***
  • Posts: 41
  • Mole Snacks: +2/-1
Re: Calculation the power level of sonication
« Reply #6 on: March 26, 2009, 04:51:58 AM »
Was the orginal work done with an ultrasonic probe in a Suslick flask rather than an unltrasonic bath?

Good suggestion. It doesn't say in the article. But I've looks at some probes online and they seem to operating at a power level from 300-1500 W.

Sponsored Links