Restek 2011/12 Chromatography Catalog - page 531

531
REFERENCE STANDARDS |
FOODS, FLAVORS & FRAGRANCES MATERIALS
Flavors & Fragrances, Nutr i t ional Analysis
Organic acids on an Allure® Organic Acids HPLC
column.
Flavors
citric acid
2,000µg/ml
fumaric acid
10*
malic acid
2,000
quinic acid
2,000
tartaric acid
2,000
Fruit Juice Organic Acid Standard
(5 components)
In water, 1mL/ampul
cat. # 35080 (ea.)
In water, 5mL/ampul
cat. # 35081 (ea.)
Peak List:
Conc. (mg/mL)
1. tartaric acid
1
2. quinic acid
1
3. malic acid
1
4. citric acid
1
5. fumaric acid
0.005
Sample:
Inj.:
10µL standard solution
Solvent:
water
Column:
Allure
®
Organic Acids
Cat.#:
9165585
Dimensions:
300mm x 4.6mm
Particle size:
5µm
Pore size:
60Å
Conditions:
Mobile phase:
100mM phosphate buffer, pH 2.5
Flow:
0.5mL/min.
Temp.:
ambient
Det.:
UV @ 226nm
LC_0238
*Fumaric acid is a trace impurity in malic acid, as well as an added component
of the mix. The amount of fumaric acid in malic acid will not affect the stated
concentration of malic acid, but can represent a significant and variable devia-
tion from the low concentration of fumaric acid stated to be in the mix. All other
components of the mix are at the specified concentration.
Quantity discounts not available.
Fatty Acid Methyl Esters (FAMEs)
Chain Description
% by Weight
C14:0 methyl myristate
6.0
C14:1 methyl myristoleate
1.0
C16:0 methyl palmitate
16.0
C16:1 methyl palmitoleate
5.0
C18:0 methyl stearate
8.0
C18:1 methyl oleate
13.0
C18:1 methyl vaccenate
4.0
C18:2 methyl linoleate
2.0
C18:3 methyl linolenate
2.0
C20:0 methyl arachidate
1.0
C20:1 methyl 11-eicosenoate
9.0
C20:2 methyl 11-14-eicosadienoate
1.0
C20:4 methyl arachidonate
3.0
C20:3 methyl 11-14-17-eicosatrienoate
1.0
C20:5 methyl eicosapentaenoate
10.0
C22:0 methyl behenate
1.0
C22:1 methyl erucate
3.0
C22:6 methyl docosahexaenoate
12.0
C24:0 methyl lingnocerate
1.0
C24:1 methyl nervonate
1.0
Marine Oil FAME Mix
(20 components)
cat. # 35066 (100mg)
Description
% by Weight
methyl elaidate (C18:1
trans
-9)
10.0
methyl linoleate (C18:2
cis
-9,12)
20.0
methyl oleate (C18:1
cis
-9)
10.0
methyl petroselinate (C18:1
cis
-6)
8.0
methyl petroselaidate (C18:1
trans
-6)
8.0
methyl stearate (C18:0)
20.0
methyl transvaccenate (C18:1
trans
-11)
12.0
methyl vaccenate (C18:1
cis
-11)
12.0
cis
/
trans
FAME Mix
(8 components)
10mg/mL total in methylene chloride, 1mL/ampul
cat. # 35079 (ea.)
No data pack available.
Quantity discounts not available.
No data pack available.
Quantity discounts not available.
acetic acid
butyric acid (C4:0)
isobutyric acid
isovaleric acid
propionic acid
valeric acid
Free Fatty Acids Test Standard
(6 components)
1,000µg/mL each in water, 1mL/ampul
cat. # 35272 (ea.)
Standard Methods for the Examination of Water and
Wastewater Method 5560: Organic and Volatile Acids
The measurement of organic acids, either by adsorption and elu-
tion from a chromatographic column or by distillation, can be
used as a control test for anaerobic digestion. The chromato-
graphic separation method is presented for organic acids
(5560B), while a method using distillation (5560C) is presented
for volatile acids. A new method using gas chromatography is
included for the determination of acetic, propionic, butyric,
isobutyric, valeric, and isovaleric acids (5560D).
benzoic acid
1.0%
benzyl salicylate
36.2%
1,8-cineole (eucalyptol)
0.5%
trans
cinnamaldehyde
0.5%
cinnamyl acetate
0.3%
cinnamyl alcohol
0.3%
ethyl butyrate
36.2%
geraniol
0.6%
hydroxycitronellal (3,7-dimethyl-
7-hydroxyoctanal)
5.0%
d-limonene
20.0%
thymol
0.3%
vanillin
0.1%
Fragrance Materials Test Mix
(12 components)
The Fragrance Materials Association (FMA) has proposed a method
for analyzing essential oils on polar and nonpolar capillary GC
columns. A performance evaluationmixture should be used to aid in
detecting inlet problems, stationary phase degradation, loss of reso-
lution, changes in sensitivity, and the presence of reactive sites in the
sample pathway. Our test mix is consistent with the mixture pro-
posed by the FMA. The required 5% test solution is made by dilut-
ing the 0.5mL of neat mixture to 10mL with acetone. The working
solution will be stable for up to one week if transferred to a dark
container and stored refrigerated.
Neat, 0.5mL in an amber ampul
cat. # 31807 (ea.)
No data pack available.
Quantity discounts not available.
Fragrances
Website :
E-mail :
TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
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