Google Sign in options
Remember me
This is not recommended for shared computers

Sign in anonymously
Don't add me to the active users list

Privacy Policy
Sign In
Create Account

Javascript Disabled Detected

You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality.

0

What tools do you use when weighing out micro grams of a solid white powder?

Started by I_love_immuno, Jul 17 2011 08:27 AM

Please log in to reply

6 replies to this topic

#1 I_love_immuno

member

Members
4 posts

0
Neutral

Posted 17 July 2011 - 08:27 AM

Hello, I was wondering if there are any good tips or tools that are used( special spatulas or something) that are used to put very small amounts of white powders onto a micro scale, then off of the microscale into solution. The problem is the amounts are so small that it is :
a ) hard to get a small amount from the small bottle to the weigh boat with the paper on top.
b ) it is impossible to move the powder from the weigh boat into the eppendorph tube ensuring that all of the powder has been transfered.

I was wondering if there are special tools or procedures that are used for these issues.
Thanks

Back to top

#2 hobglobin

Growing old is mandatory, growing up is optional...

Active Members
5,252 posts

60
Excellent

Posted 17 July 2011 - 08:42 AM

I_love_immuno, on 17 July 2011 - 08:27 AM, said:

Hello, I was wondering if there are any good tips or tools that are used( special spatulas or something) that are used to put very small amounts of white powders onto a micro scale, then off of the microscale into solution. The problem is the amounts are so small that it is :
a ) hard to get a small amount from the small bottle to the weigh boat with the paper on top.
b ) it is impossible to move the powder from the weigh boat into the eppendorph tube ensuring that all of the powder has been transfered.

I was wondering if there are special tools or procedures that are used for these issues.
Thanks

I directly weigh in the Eppendorf tube and use a not too heavy lid with high enough rim as mount for the tube.

One must presume that long and short arguments contribute to the same end. - Epicurus
...except casandra's that belong to the funniest, most interesting and imaginative (or over-imaginative?) ones, I suppose.

Back to top

#3 casandra

carpe diem by the jugulum

Active Members
5,007 posts

51
Excellent

Posted 17 July 2011 - 09:04 AM

hobglobin, on 17 July 2011 - 08:42 AM, said:

I_love_immuno, on 17 July 2011 - 08:27 AM, said:

Hello, I was wondering if there are any good tips or tools that are used( special spatulas or something) that are used to put very small amounts of white powders onto a micro scale, then off of the microscale into solution. The problem is the amounts are so small that it is :
a ) hard to get a small amount from the small bottle to the weigh boat with the paper on top.
b ) it is impossible to move the powder from the weigh boat into the eppendorph tube ensuring that all of the powder has been transfered.

I was wondering if there are special tools or procedures that are used for these issues.
Thanks

I directly weigh in the Eppendorf tube and use a not too heavy lid with high enough rim as mount for the tube.

and you can use a microspatula- stainless steele with pointed or tapered tips so you can deposit the powder easily into the bottom of the tube...

"Oh what a beauteousness!"
- hobglobin, personal comment about my beauteous photo......

Back to top

#4 I_love_immuno

member

Members
4 posts

0
Neutral

Posted 17 July 2011 - 09:19 AM

hobglobin, on 17 July 2011 - 08:42 AM, said:

I_love_immuno, on 17 July 2011 - 08:27 AM, said:

Hello, I was wondering if there are any good tips or tools that are used( special spatulas or something) that are used to put very small amounts of white powders onto a micro scale, then off of the microscale into solution. The problem is the amounts are so small that it is :
a ) hard to get a small amount from the small bottle to the weigh boat with the paper on top.
b ) it is impossible to move the powder from the weigh boat into the eppendorph tube ensuring that all of the powder has been transfered.

I was wondering if there are special tools or procedures that are used for these issues.
Thanks

I directly weigh in the Eppendorf tube and use a not too heavy lid with high enough rim as mount for the tube.

Awesome, u have sparked many good ideas... thanks!

Back to top

#5 I_love_immuno

member

Members
4 posts

0
Neutral

Posted 17 July 2011 - 09:20 AM

casandra, on 17 July 2011 - 09:04 AM, said:

hobglobin, on 17 July 2011 - 08:42 AM, said:

I_love_immuno, on 17 July 2011 - 08:27 AM, said:

Hello, I was wondering if there are any good tips or tools that are used( special spatulas or something) that are used to put very small amounts of white powders onto a micro scale, then off of the microscale into solution. The problem is the amounts are so small that it is :
a ) hard to get a small amount from the small bottle to the weigh boat with the paper on top.
b ) it is impossible to move the powder from the weigh boat into the eppendorph tube ensuring that all of the powder has been transfered.

I was wondering if there are special tools or procedures that are used for these issues.
Thanks

I directly weigh in the Eppendorf tube and use a not too heavy lid with high enough rim as mount for the tube.

and you can use a microspatula- stainless steele with pointed or tapered tips so you can deposit the powder easily into the bottom of the tube...

I shall seek out a micro spatula!
thanks