sample absorbance

USAGE SUMMARY

The phrase "sample absorbance" is correct and usable in written English.
It can be used in scientific contexts, particularly in chemistry or biology, when discussing the measurement of how much light is absorbed by a sample. Example: "The sample absorbance was measured at a wavelength of 450 nm to determine the concentration of the analyte."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

52 human-written examples

The background absorbance was subtracted from the well absorbance to give the sample absorbance.

Nature

The percentage of the sample absorbance relative to control treated cells absorbance gave the % metabolic activity.

Nature

At 190 nm, sample absorbance was found linearly correlated with the polymer concentration.

Journal of Petroleum Science and Engineering

The background absorbance from the media incubated with MTS/PMS was subtracted from the well absorbance to give the sample absorbance.

Nature

The sample absorbance was subtracted from control-cultured cells (low control) and divided by the cells that had been lysed (high control) minus the control cells (low control) to give the % cytotoxicity.

Nature

The percentage inhibition (I%) was calculated as [1 − (test sample absorbance/blank sample absorbance)] × 100.

Chemistry Central Journal

Human-verified similar examples from authoritative sources

Similar Expressions

8 human-written examples

A Sample = Absorbance of the sample (Ferrous sulphate, hydrogen peroxide, sodium salicylate and varied concentrations of leaf extracts of MO.

Clinical Phytoscience

The percentage of scavenging superoxide anion generation was calculated as: Percentage inhibition = (1- sample absorbance/control absorbance) × 100.

Chemistry Central Journal

Results were classified as the sample absorbance/positive control absorbance ratio.

Emerging Infectious Diseases

% inhibition = 1 – absorbance of sample / absorbance of control × 100 (3).

Chemistry Central Journal

The percent inhibition was calculated by using the following formula: Percentage inhibition = 1 − absorbance of sample / absorbance of control × 100.

BMC Complementary and Alternative Medicine

Expert writing Tips

Best practice

When reporting "sample absorbance", always specify the wavelength at which the measurement was taken. This is crucial because absorbance varies with wavelength, and the value is meaningless without this information.

Common error

A common mistake is failing to subtract the background absorbance from the "sample absorbance". Always measure and subtract the absorbance of a blank sample to ensure you are only measuring the absorbance of the substance of interest.

Linguistic Context

The phrase "sample absorbance" functions primarily as a noun phrase. It refers to the measurement of light absorption by a substance, typically in a scientific or technical context. As Ludwig AI confirms, it's a usable term in written English, particularly in scientific contexts.

Expression frequency: Common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

In summary, "sample absorbance" is a grammatically sound and commonly used noun phrase primarily within scientific contexts. Ludwig AI analysis confirms its correctness and usability. It serves the purpose of quantifying light absorption by a substance, and should be used formally in scientific publications. Remember to specify the wavelength and account for background absorbance to ensure accurate and meaningful measurements. Alternative phrases such as "absorbance of the sample" or "sample optical density" can be used to add variety to your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

absorbance of the sample

This alternative uses a slightly different word order to express the same concept.

sample optical density

Replaces "absorbance" with "optical density", a related term in spectrophotometry.

sample light absorption

Substitutes "absorbance" with "light absorption", emphasizing the physical process.

absorbance reading of the sample

Specifies that "absorbance" is a reading or measurement taken from the sample.

spectral absorbance of the sample

Adds the "spectral" descriptor to specify "absorbance" across a spectrum.

level of absorbance in the sample

This expresses absorbance as an amount or level within the sample.

light absorption by the sample

Focuses on the light being absorbed by the sample, using a more descriptive phrase.

sample's light absorption capacity

This emphasizes the sample's inherent ability to absorb light.

degree of light absorption of the sample

Expresses "absorbance" as a degree or extent of light absorption.

sample's extinction

Uses "extinction" as a more technical synonym for absorbance, also considering scattering effects.

FAQs

How is "sample absorbance" typically measured in a lab setting?

Typically, "sample absorbance" is measured using a spectrophotometer. This instrument shines a beam of light through the sample and measures the amount of light that passes through, allowing the calculation of absorbance at specific wavelengths.

What does a high "sample absorbance" value indicate?

A high "sample absorbance" value suggests that the sample is absorbing a large amount of light at the measured wavelength. This can indicate a high concentration of the absorbing substance or a strong interaction between the light and the sample.

What's the difference between "sample absorbance" and "sample transmittance"?

"Sample absorbance" measures the amount of light absorbed by a sample, while "sample transmittance" measures the amount of light that passes through the sample. They are inversely related; high absorbance means low transmittance, and vice versa.

In what contexts might I use the phrase "absorbance of the sample" instead of "sample absorbance"?

The phrase "absorbance of the sample" is a perfectly acceptable alternative to "sample absorbance". You might choose it when you want to emphasize that you are specifically discussing the absorbance that belongs to a particular sample.