Amino Acid AQC - Watrex Praha sro

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Amino Acid AQC - Watrex Praha sro
Amino Acid AQC
Cat.No. :D2K4101926
Amino Acid-AQC
kit for determination of amino acids
Description:
6-aminoquinolyl-N-hydroxysuccinimidyl carbamate is a new fluorescent reagent for
derivatization of amino acids. The reaction at pH 8,2-10 is very fast and quantitative, the
derivatives are very stable. Selective fluorescence of derivatives enables direct injection of
reaction product without the necessity of excess reagent removal.
Recommended derivatization procedure
Mix 70 ml of 0,2 M borate buffer pH 8,8, and 10 ml sample Add 20 ml of derivatizing reagent,
and stir thoroughly.
Derivatized sample can be injected directly or diluted with eluent.
Detection: fluorimetric (excitation 254 nm; emission 395 nm) or UV (254 nm).
Total concentration of aminogroups in sample should not exceed 4 mM.
Separation of AQC amino acids – AA-standard
Column:
Eluent A:
Eluent B:
Flow rate:
Temperature:
Gradient:
Pressure:
WATREX 250x4 mm Amino Acid-AQC 5 um with 20x4mm guard column
0,1M acetate buffer pH 5,0 (adjusted with H3PO4)
Acetonitrile-water 60:40
2 ml/min
37°C
0 min 5%B; 11,5 min 16%B; 11,75 min 25%B; 15 min 30%B; 17,5 min 35%B; 21 min
50%B; 22 min 100%B; 29 min 100%B; 30 min 5%B; 37 min 5%B
20-24 MPa
Watrex Praha, Ltd, Carolina Centrum, Drnovská 1112/60, 161 00 Praha 6, Czech Republic.
Phone + 420 226 203 500, E-mail: [email protected] , http://www.watrex.cz
Amino Acid AQC
Applications for Amino Acid - AQC kit
Hydrolysate standard
350
K
F
Y
300
E
V
I
250
L
200
M
150
NH4
S
G
100
C
H
D
T
R
P
A
50
0
5
10
15
20
25
t ( m in )
Human plasma (free AA)
70
V
60
Q
50
40
NH4
A
30
I
L
G
F
20
T
S
10
N
P
M
R
E
K
Y
H
P-OH
0
5
10
15
20
t (min)
Watrex Praha, Ltd, Carolina Centrum, Drnovská 1112/60, 161 00 Praha 6, Czech Republic.
Phone + 420 226 203 500, E-mail: [email protected] , http://www.watrex.cz
25
Amino Acid AQC
Colon tissue biopsy extract (free AA)
250
NH4
200
K
L
V
150
S
G
E
100
A
I
F
R
T
Q
50
Y
N
D
M
H
P
0
5
10
15
t
20
25
( m in )
Yeast cells (free AA)
E
200
K
150
R
V
100
I
A
50
NH4
Q
L
S
D
N
G
H
T
P
Y
F
M
0
5
10
15
20
t ( m in )
Watrex Praha, Ltd, Carolina Centrum, Drnovská 1112/60, 161 00 Praha 6, Czech Republic.
Phone + 420 226 203 500, E-mail: [email protected] , http://www.watrex.cz
25
Amino Acid AQC
HPLC conditions for above applications:
Column:
Eluent A:
Eluent B:
Flow rate
Temperature:
Gradient:
Pressure:
WATREX 250x4 mm Amino Acid-AQC 5 um with 20x4mm guard column
0,1M acetate buffer pH 6,4 (adjusted with H3PO4)
Acetonitrile-water 60:40
1,5 ml/min
37°C
0 min 5%B; 4 min 18%B; 10 min 19%B; 16 min 35%B; 24 min 40%B; 25 min 60%B; 31 min
60%B; 32 min 5%B; 39 min 5%B
20-24 MPa
Amino acid isolation
Plasma
100 ml plasma was added to 400 ml acetonitrile, vortexed and centrifuged for 10 min at 10
000 x g.
Colon tissue
10-30 mg colon tissue was incubated in 200 ml water for 10 min at 50°C. Mixture was briefly
centrifugated and 100 ul supernatant was added to 400 ml acetonitrile, vortexed and
centrifuged for 10 min at 10 000 x g
Yeast cells
Two or three yeast colonies were suspended in 3 ml of water and amino acids were extracted
following the method of Ohsurni et al. (1988) modified by Gent and Slaughter
(1998).
Reference
Analytical Biochemistry 211, 279-287 (1993)
Gent, D.P., and Slaughter, J.C. (1998). Intracellular distribution of amino acids in an slpl
vacuole-deficient mutant of the yeast Saccha romyces cerevisiae. J, Appl. Microbiol. 84, 752758
Ohsumi, Y., Kitamoto, K., and Anraku, Y. (1988). Changes induced in the permeability barrier
of the yeast plasma membrane by cupric ion, J. Bacteriol. 170, 2676-2782
Amino Acid-AQC contains:
D2K4101927
5x1 ml derivatizing reagent AQC for determination of amino acids (solution
of 6-aminochinolyl-N-hydroxysuccinimidyl carbamate in acetonitrile)
D2K4101928 HPLC column WATREX 250x4 mm Amino Acid-AQC 5 um D2K4101929
Set of 3 pcs guard column WATREX 20x4 mm Amino Acid-AQC 5 um WI029012
WATREX integral guard column holder
Instructions for derivatization and separation conditions
Watrex Praha, Ltd, Carolina Centrum, Drnovská 1112/60, 161 00 Praha 6, Czech Republic.
Phone + 420 226 203 500, E-mail: [email protected] , http://www.watrex.cz

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