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485

REFERENCE STANDARDS |

ENVIRONMENTAL

Diesel Fuel, Disinfection By-Products, Drinking Water Odor, Ethylene Oxide

Diesel Fuel,

cont.

Restek Offers a Full .

Line of Certified .

Reference Materials

www.restek.com/ i

so

See

pages 464–465

.

5,000 µg/mL each in hexane, 1 mL/ampul

cat.# 31682 (ea.)

Diesel fuel #2 composite (68334-30-5)

Motor oil (64742-65-0)

Diesel #2/Motor Oil

(2 components)

5,000 µg/mL each in hexane, 1 mL/ampul

cat.# 31676 (ea.)

Diesel fuel #2 composite (68334-30-5)

Mineral oil (8042-47-5)

Diesel #2/Mineral Oil

(2 components)

5,000 µg/mL each in cyclohexane, 1 mL/ampul (prepares 8 mL of 1.25 µg/µL calibration curve

high point). Total hydrocarbon concentration is 10,000 µg/mL.

cat.# 31630 (ea.)

Diesel #2 (additive-free) (68334-30-5)

Mineral oil (additive-free [i.e., USP grade] bp 325–460 or C18–C32 retention time range)

(8042-47-5)

ISO/DIS 9377Water Quality Testing

(German H-53)

Reference mixtures for ISO/DIS 9377 (German H-53), a gas

chromatography–flame ionization detection (GC-FID) method.

Standard Mixture Stock Solution

(2 components)

• For GC analysis of total petroleum hydrocarbons (TPH)

in water.

• Calibration standard available as Diesel #2/motor oil and

Diesel #2/mineral oil.

500 µg/mL each in acetone, 1 mL/ampul (1 mL is enough mix to spike one 900 mL quality

control sample). Total hydrocarbon concentration is 1,000 µg/mL.

cat.# 31641 (ea.)

Diesel #2 (additive-free) (68334-30-5)

Motor oil (additive-free bp 325–460 or C18–C32 retention time range) (64742-65-0)

Quality Control Standard Mixture, Revised

(2 components)

• Updated reference materials for GC analysis of TPH in water.

• Determination of hydrocarbon oil index—applicable to

drinking, surface, waste, and treated water.

500 µg/mL each in acetone, 1 mL/ampul (1 mL is enough mix to spike one quality control

sample). Total hydrocarbon concentration is 1,000 µg/mL.

cat.# 31631 (ea.)

Diesel #2 (additive-free) (68334-30-5)

Mineral oil (additive-free [i.e., USP grade] bp 391–522 or C24–C40 retention time range)

(8042-47-5)

Quality Control Standard Mixture

(2 components)

• For GC analysis of total petroleum hydrocarbons (TPH)

in water.

• Environmentally safer than previous methods.

• Calibration standard available as Diesel #2/motor oil and

Diesel #2/mineral oil.

Disinfection By-Products

1,000 µg/mL in acetonitrile, 1 mL/ampul

cat.# 30609 (ea.)

Chloral hydrate (302-17-0)

Chloral Hydrate

2,000 µg/mL each in acetone, 1 mL/ampul

cat.# 30616 (ea.)

Bromochloroacetonitrile (83463-62-1)

Chloropicrin (76-06-2)

Dibromoacetonitrile (3252-43-5)

Dichloroacetonitrile (3018-12-0)

1,1-Dichloro-2-propanone (513-88-2)

Trichloroacetonitrile (545-06-2)

1,1,1-Trichloro-2-propanone (918-00-3)

Disinfection By-Product Mix

(7 components)

Drinking Water Odor

100 µg/mL in P&T methanol, 1 mL/ampul

cat.# 30608 (ea.)

(+/–)-Geosmin (16423-19-1)

2-Methylisoborneol (MIB) (2371-42-8)

DrinkingWater Odor Standard

(2 components)

• Reference mix of the two most common odor-causing

compounds.

• Convenient concentration for purge-and-trap analysis:

100 µg/mL in methanol.

Unpleasant odor in drinking water is associated with the

growth and decay of microorganisms. The threshold value for

these compounds is low (10 ppt), and purge-and-trap analyses

usually are used to quantify them.

Ethylene Oxide

500 µg/mL in dimethyl sulfoxide, 1 mL/ampul

cat.# 36005 (ea.)

50 mg/mL in methylene chloride, 1 mL/ampul

cat.# 30620 (ea.)

Ethylene oxide is available in other solvents and concentrations. Request your custom

formulation at

www.restek.com/solutions

Ethylene oxide (75-21-8)

Ethylene Oxide