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Categories >> Sciences >> Chemistry >> Analytical Chemistry
 
 


 

 
 Organic Chemistry interview questions  Organic Chemistry Interview Questions (222)
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 Analytical Chemistry interview questions  Analytical Chemistry Interview Questions (850)
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Question
what split ratio in gas chromatography.
 Question Submitted By :: Analytical-Chemistry
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
Capillary columns 100 micron or less in internal diameter
so the sample vlume what we are injected is too high for
column thus split help to dived the volume and pass require
volume into injuctor.
Eg : Split ratio is 1 : 10 that means what ever the sample
u injected that portion is divided into 10 parts from that
10 parts only 1 part will go into injuctor. this is to
minimize the load.
 
Is This Answer Correct ?    41 Yes 4 No
Shyam Kumar
 
Answer
# 2
Capillary columns 100 micron or less in internal diameter
so the sample vlume what we are injected is to high for
column thus split help to dived the volume and pass throuh
less amount and remaning sample gone as a wasre.
 
Is This Answer Correct ?    26 Yes 1 No
Sures Babu
 
 
 
Answer
# 3
Split injection techniques are used in capillary gas
chromatography. Capillary columns are easily overloaded, so
smaller amounts have to be injected. Because of the split a
smaller amount of analyte will enter the column



Read more:
http://wiki.answers.com/Q/What_is_use_of_split_ratio_in_gc_a
nalysis#ixzz1O1XZTnZM
 
Is This Answer Correct ?    12 Yes 1 No
Jajili Eluru
 
Answer
# 4
Split ratio:- It is the ratio of sample amount inject into
the column to that waste out from glass insert.
In capillary columns the size of bore is about 5 microns.It
faced xtra load whent inject high conc. sample.for reduce
the xtra load on column there is a need of split ratio.
Normaly its value:- 10:1
split ratio is required when Conc.of sample >or=0.1 %
split ratio is not required when Conc.of sample < 0.01 %
 
Is This Answer Correct ?    9 Yes 1 No
Daljit Singh Randhawa
 
Answer
# 5
Split ratio is split of flow and thus split of sample at
the injection port to minimize sample overload to GC
capillary column.
 
Is This Answer Correct ?    3 Yes 0 No
Vijay More
 
Answer
# 6
capilarry columns are easily overloaded by injection of high volume of analyres to minimize this we use spit4 dat samples 
Is This Answer Correct ?    1 Yes 0 No
Rohith
 
Answer
# 7
IN GC split ratio is kept high ... 1;25----1;50 ........
for good results'
'
'
'
but it all depends upon the procedure for its done ... i.e.,

1. development process or
2. for already developed method's
 
Is This Answer Correct ?    2 Yes 6 No
Surya Prakash
 

 
 
 
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