lineartransform
Bluelighter
- Joined
- Mar 19, 2009
- Messages
- 157
Yes, this method is flawed. It will not be accurate in the least.
You assume that you will measure exactly 5mg each time - not true. You're assuming that your scale is perfectly accurate, and then it is rounded to 0.01g accuracy. There's a bit more math to get into if you like, but in short, that is not true and this is not a good idea at all.
Your best approach is to measure a large volume of powder (say 0.16g, which would indicate with some confidence that it wieghs between 0.15g and 0.17g) which is dissolved into say 50mL of vodka. You could then titrate 5mL of vodka with a small plastic syringe for a dose that is very likely to be between 15mg and 17mg.
Your other method could result in a much larger variance - I would say it is very likely that the dose could range from almost nothing to double what you want.
You assume that you will measure exactly 5mg each time - not true. You're assuming that your scale is perfectly accurate, and then it is rounded to 0.01g accuracy. There's a bit more math to get into if you like, but in short, that is not true and this is not a good idea at all.
Your best approach is to measure a large volume of powder (say 0.16g, which would indicate with some confidence that it wieghs between 0.15g and 0.17g) which is dissolved into say 50mL of vodka. You could then titrate 5mL of vodka with a small plastic syringe for a dose that is very likely to be between 15mg and 17mg.
Your other method could result in a much larger variance - I would say it is very likely that the dose could range from almost nothing to double what you want.