Debbie Knight

Clearing the dust…

In lab safety on February 12, 2014 at 3:49 pm

balance

Usually when we weigh out chemicals in the lab, we use a little brush to clean off the balance. But now that we work with nanoparticles, the brush is not the right tool for the job.

Nanoparticles are tiny – in our case, really tiny particles, measuring  one hundred nanometers or less in diameter.  To put their size in perspective, they are roughly the same size range as many viruses, including the common cold virus. They can are much smaller than a bacteria (one hundred to a thousand times smaller). And, in terms of a typical human hair, you would have to line up a thousand or so nanoparticles (each one hundred nanometers in diameter) to span the width of a human hair.

When we weigh nanoparticles, they are like a really fine dust.

And this dust doesn’t really clean up very easily, at least with a brush.

So, we’ve resorted to using small squares of Swiffer Dusters™ dusting cloths.

dusters

And let me tell you, they work great!

And not just for cleaning up nanoparticle “dust.”

It works great for cleaning up standard lab chemicals as well – especially dyes like crystal violet which are notoriously difficult to clean off an analytical balance. I’ve weighed this dye out, thought I’d cleaned the balance thoroughly, only to find I hardly made a dent in cleaning it up.

I can’t believe my lab didn’t discover these little gems earlier!

Swiffer Dusters™ dusting cloths, not just for house cleaning any more.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: