ASTM E411 is the standard test method for determining trace quantities of carbonyl compounds with 2,4-Dinitrophenylhydrazine. This test method determines total carbonyl in the range of 0.5 to 50 µg, calculated as CO, in aqueous solutions and a wide range of organic solvents. It also determines acetals that hydrolyze under the test conditions, but carbonyl derivatives that hydrolyze easily, such as acetals and imines, can be determined using a different approach. For detailed information on toxicity, first-aid procedures, and safety measures, refer to the most recent applicable Material Safety Data Sheets (MSDS).
ASTM E411 Standard Test Method for Trace Quantities of Carbonyl Compounds with 2,4-Dinitrophenylhydrazine
What is ASTM E411?
What is the Scope of ASTM E411?
ASTM E411 is a standard test method for determining trace amounts of carbonyl compounds with 2,4-dinitrophenylhydrazine. This test method can determine trace levels of aldehydes and ketones in aqueous solutions and a wide range of organic solvents.
- Purpose: Covers the determination of total carbonyl content (aldehydes and ketones) in aqueous solutions and various organic solvents.
- Range: Measures total carbonyl in the range from 0.5 µg to 50 µg, calculated as CO.
- Principle: Uses 2,4-dinitrophenylhydrazine (DNPH) as a reactive agent to form hydrazones that are measured photometrically.
- Interferences: Acetals that hydrolyze under the test conditions are also determined
ASTM E411 Sample Preparation
For the ASTM E411 test protocol, 2 mL of a sample containing 0.5 to 50 g of carbonyl is utilized as a test specimen.
ASTM E411 Testing Procedure and Requirements
In the ASTM E411 test protocol, a sample containing traces of carbonyl compounds is combined with an acidic solution of 2,4-dinitrophenylhydrazine to generate hydrazone, which, upon reacting with potassium hydroxide, produces a wine-red color, possibly due to a resonant quinoidal ion. The intensity of the red color is determined photometrically as a function of carbonyl concentration, and the amount of carbonyl is read directly from a previously produced calibration curve. This test approach relies on Lappin and Clark’s work.
ASTM E411 Results Analysis and Interpretation
Carbonyl derivatives such as acetals and imines that are easily hydrolyzed may be determined by an alternative procedure.
As per ASTM E411, the carbonyl content of the sample is calculated as follows:
CO, µg/g = A/B
where,
A = weight of carbonyl found, µg
B = sample weight, g
FAQ
Where can I get the astm e411 tested?
You can share your astm e411 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm e411 test to various testing techniques.
How much do I need to pay for the astm e411 test?
Please contact us for a detailed quote for your astm e411 testing needs. Cost incurred to carry out different astm e411 testing methodology depends on the type of raw material; number of samples, coupons, or specimens; test conditions, turn around time etc. Costs of some ASTM testing methods start from $100 and the final value depends upon the factors listed above. Please contact us for the best and latest prices.
How many samples are required for astm e411?
The required number of samples or specimens should comply with the procedure given in the astm e411 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
How much discount can I get on the astm e411 test?
MaTestLab has a vast testing laboratory network, hence we bring you the best testing facilities in a cost-effective way. We offer considerable discounts (15-20%) to our returning customers based on test volume and frequency.
How many days will it take to complete the astm e411 test?
The turnaround time for astm e411 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
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