Previous in Forum: Feds Focus on Plant Security   Next in Forum: Ground Nut Oil's Effect on Hair
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
7 comments
Rate Comments: Nested
Jmnav
Active Contributor
Brazil - Member - New Member

Join Date: Sep 2006
Location: Brazil
Posts: 15

50-fold

11/13/2006 10:21 AM

Dear Sirs,

I'm trying to understand the term 50-fold that appears in a procedure that I'm reading.

As english is not my native language, I'm a little bit affraid of do something wrong during this experiment. So, I kindly ask if someone can explain me its meaning.

Rgds,

Joao
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Bayes
The Engineer
Engineering Fields - Engineering Physics - Physics... United States - Member - NY Popular Science - Genetics - Organic Chemistry... Popular Science - Cosmology - New Member Ingeniería en Español - Nuevo Miembro - New Member

Join Date: Feb 2005
Location: Albany, New York
Posts: 5060
Good Answers: 129
#1

Re: 50-fold

11/13/2006 10:45 AM

As far as I know, 50 fold generally means 50 times (50x). It is often used in phrases like "There has been a 50 fold increase in ....".

Though it's entirely possible 50 fold means something different in the document your reading. Can you provide the sentence "50-fold" appears in? I think that would help me know for sure I'm telling you the correct definition.
Register to Reply
Jmnav
Active Contributor
Brazil - Member - New Member

Join Date: Sep 2006
Location: Brazil
Posts: 15
#2
In reply to #1

Re: 50-fold

11/13/2006 11:27 AM

Thanks. Below the sentence.

"the sample should be diluted quantitatively 50-fold with destilled water."
Register to Reply
Bayes
The Engineer
Engineering Fields - Engineering Physics - Physics... United States - Member - NY Popular Science - Genetics - Organic Chemistry... Popular Science - Cosmology - New Member Ingeniería en Español - Nuevo Miembro - New Member

Join Date: Feb 2005
Location: Albany, New York
Posts: 5060
Good Answers: 129
#3
In reply to #2

Re: 50-fold

11/13/2006 11:45 AM

You Wrote: "the sample should be diluted quantitatively 50-fold with destilled water."

It definitely means 50x more water than your sample. Does it say if it's by weight or volume?

Register to Reply
Jmnav
Active Contributor
Brazil - Member - New Member

Join Date: Sep 2006
Location: Brazil
Posts: 15
#4
In reply to #3

Re: 50-fold

11/13/2006 12:39 PM

By volume - 100ml.

So I think I should dilute it in 5 liters of water. Am I right?
Register to Reply
Bayes
The Engineer
Engineering Fields - Engineering Physics - Physics... United States - Member - NY Popular Science - Genetics - Organic Chemistry... Popular Science - Cosmology - New Member Ingeniería en Español - Nuevo Miembro - New Member

Join Date: Feb 2005
Location: Albany, New York
Posts: 5060
Good Answers: 129
#5
In reply to #4

Re: 50-fold

11/13/2006 12:56 PM

Yes, I agree, 5 liters of water. Good Luck.
Register to Reply
Jmnav
Active Contributor
Brazil - Member - New Member

Join Date: Sep 2006
Location: Brazil
Posts: 15
#6
In reply to #5

Re: 50-fold

11/13/2006 1:09 PM

Thank you.
Register to Reply
Tad
Power-User

Join Date: Dec 2006
Posts: 442
Good Answers: 32
#7
In reply to #5

Re: 50-fold

12/03/2006 6:28 PM

Well, not exactly. You should dilute to a total volume of 5 l., not just adding 100 ml to 5l.

Register to Reply
Register to Reply
Have a Different Question?
7 comments
Copy to Clipboard

Users who posted comments:

Bayes (3); Jmnav (3); Tad (1)

Previous in Forum: Feds Focus on Plant Security   Next in Forum: Ground Nut Oil's Effect on Hair

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Chemical & Material Science:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (82 right now)
Show Members
Advertisement