in the laboratory vs at the laboratory

Both "in the laboratory" and "at the laboratory" are correct, but they are used in different contexts. "In the laboratory" is used when referring to someone or something physically inside the laboratory, while "at the laboratory" is used when referring to someone or something located near or in the vicinity of the laboratory.

Last updated: March 29, 2024 • 1681 views

in the laboratory

This phrase is correct and commonly used in English.

Use "in the laboratory" when referring to someone or something physically inside the laboratory.

Examples:

The scientists are conducting experiments in the laboratory.
There are many chemicals in the laboratory.
She works in the laboratory every day.
The equipment in the laboratory is state-of-the-art.
Students are not allowed to eat or drink in the laboratory.

Show examples from the web [+]

Harry's 400th consecutive hour in the laboratory.
Well, I assist Dr Fronkonsteen in the laboratory.
When I saw the documents in the laboratory of Epsilon Pharmaceuticals...
Sartorius wants to see us in the laboratory.
Stage One of our experiments was conducted in the laboratory.
These tests may be performed in the laboratory or under semi-field conditions.
I forgot one thing in the laboratory.
It'll be easier to "rearrange" things in the laboratory.
My men and I saw someone in the laboratory.
He inhaled heavy water vapors in the laboratory.
Professor, there are some cricketers in the laboratory.
Dr. Campbell realized that his discoveries in the laboratory were significant, but limited.
I was upstairs in the laboratory.
I wish to work in the laboratory some day.
Forgot that, it was in the laboratory.
At 12, in the laboratory we need to talk.
I think the answer lies in the laboratory.
This aggregate sample is homogenised in the laboratory.
An advantage is that infectious virus particles need not be replicated in the laboratory.
A detailed description of the procedure applied must be available for consultation in the laboratory.

Alternatives:

inside the laboratory
within the laboratory
within the lab
inside the lab
within the research facility

at the laboratory

This phrase is correct and commonly used in English.

Use "at the laboratory" when referring to someone or something located near or in the vicinity of the laboratory.

Examples:

The delivery truck is at the laboratory entrance.
I will meet you at the laboratory after lunch.
There is a security checkpoint at the laboratory gate.
The visitors are waiting at the laboratory reception.
The parking lot is at the laboratory building.

Show examples from the web [+]

Reimbursement of consumables shall be based on actual costs incurred by Member States to perform the tests at the laboratory.
The sample should be conserved at a temperature of around 4º C, in a cool box or refrigerator until arrival at the laboratory.
The analysis must be carried out on the sample tested on the arrival at the laboratory.
One of the two samples is analyzed within 24 hours from the time of arrival at the laboratory.
According to the interoperability procedure, tests will start as soon as requests for the first recording equipment and tachograph cards have been registered at the laboratory in charge.
At the laboratory, samples shall be kept at a constant temperature between + 2 ºC and 25 ºC until bacteriological examination, which shall be carried out within 13 days after sampling.
Date of beginning of the analysis at the laboratory;
at the laboratory place each sample (or pooled sample as appropriate) into an equal weight of Buffered Peptone Water and mix gently;
The preparation of a final sample received at the laboratory is a series of operations, usually sieving, grinding and mixing, carried out in such a way that:
Samples shall be held at + 2-8 ºC in the laboratory and the laboratory sampling procedure shall begin as soon as possible after the arrival of the samples at the laboratory and in any case within 72-80 hours from the time of sampling.
At the laboratory samples shall be kept refrigerated until examination.
At the laboratory, the sample should be treated in order to ensure that all ingredients are thoroughly mixed.
At the laboratory, samples that cannot be tested on the day of arrival shall be kept refrigerated until analysis.
At the laboratory, samples shall be kept refrigerated until bacteriological examination, which shall preferably be carried out within 24 hours after receipt but in any case no later than 96 hours after the sample was collected.
At the laboratory samples shall be kept refrigerated until examination, which shall be started within 48 hours following receipt and within 96 hours after sampling.
The police are at the laboratory.
The eyes, once they arrive at the laboratory, are carefully examined for defects including increased opacity, scratches, and neovascularisation.
Regarding swabs sample, at the laboratory, 100 ml of BPW shall be added for pre-enrichment.
They shall be in charge of the reception and storage of the samples upon their arrival at the laboratory as well as of their storage after being tested.
at the laboratory the composite sample is to be warmed in the original unopened container to 30 ºC and shaken frequently until a homogeneous fluid emulsion free of unsoftened pieces is obtained.

Alternatives:

near the laboratory
by the laboratory
close to the laboratory
in the vicinity of the laboratory
at the lab

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in the laboratory vs at the laboratory