What can visitors do with the embedded Calibration Methods lab?

They can toggle between the external-standard and standard-addition methods, then move sliders for sensitivity (slope), matrix effect, unknown concentration, measurement noise and the blank/baseline. The fitted line, the recovered unknown and — for standard addition — the back-extrapolation to the x-intercept all update live.

What does the Calibration Methods lab teach?

It shows why the method you choose changes the answer. Add a matrix effect and the external-standard result drifts off the true value, while standard addition — built in the sample matrix — extrapolates back to the correct concentration. It makes the trade-off between the two calibration strategies visible instead of abstract.

Is embedding the Calibration Methods lab free?

Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Calibration Methods by LK Forge" credit line that comes with the embed code.

What iframe height should I use, especially on mobile?

The snippet ships with height="900", which is tall enough that the plot, the sliders and the readouts all fit without clipping even on a narrow phone, where they stack into a single column. On a wider page the widget simply centres within its max-width of 560px. You can lower the height if you want it shorter, but 900 is the safe default across screen sizes.

Where can I embed it — WordPress, Wix, Squarespace, Notion?

Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/calibration-methods/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.

Does the embedded lab track visitors or set cookies?

No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.

Widgets

How to Add a Calibration Methods Lab to Your Website

LK Forge · 4 min read · Updated September 2026

You can add a full calibration-methods lab to any website, blog, or classroom page with a single line of code — free, with no sign-up, no plugin, and no script to install. Visitors switch between the external-standard and standard-addition methods and watch the matrix effect — the way a real sample bends the response — pull one answer off target while the other extrapolates back to the truth. This guide covers the fastest way to embed the Calibration Methods lab, what it teaches, and where it works.

The quickest way: paste one embed snippet

An embed is just an <iframe> that loads the lab from lkforge.com, plus a small credit line. Copy this into your page’s HTML where you want the widget to appear:

<iframe src="https://lkforge.com/embed/calibration-methods/"
        width="100%" height="900" loading="lazy"
        style="border:0;max-width:560px"
        title="Calibration Methods by LK Forge"></iframe>
<p><a href="https://lkforge.com/tools/chemistry/calibration-methods/">Calibration Methods</a>
   by <a href="https://lkforge.com/">LK Forge</a></p>

The <iframe> is the live lab; the <p> underneath is a plain credit link. Keep that line — the visible link is what keeps the widget free to embed. You can also copy this exact code straight from the LK Forge widget gallery.

What the widget shows

The lab opens on the external-standard method, so a visitor sees a fitted calibration line immediately and can then take control:

External standard vs standard addition: two buttons switch the whole method, and the plot redraws to match.
Sensitivity and matrix effect: sliders set the slope and how strongly the sample matrix distorts the response.
Unknown, noise and blank: set the unknown concentration, add measurement noise, and shift the blank/baseline to see how each affects the fit.
Recovered unknown: the readout compares the concentration each method returns against the true value — with standard addition back-extrapolating to the x-intercept.

Pick the right height

The snippet uses height="900", which fits the plot, the sliders and the readouts without clipping even on a narrow phone, where they stack into one column. On a wider page the widget centres within its max-width:560px. That single height works across screen sizes, so there is nothing to tweak for mobile.

Where it works

Because it is a standard iframe, the embed works anywhere you can add HTML:

WordPress: add a Custom HTML block and paste the snippet.
Squarespace: use a Code / Embed block.
Wix: add an Embed HTML / iframe element.
Ghost: insert an HTML card.
Notion: paste the /embed/calibration-methods/ URL and choose "Create embed".
Plain HTML, an intranet, or a lesson page: paste the snippet straight into the markup.

That’s the whole job. Copy the embed code from the widget gallery and paste it wherever an analytical-chemistry lesson or a blog post on calibration, standard addition or matrix effects needs a curve students can actually fit.

Grab the embed code from the LK Forge widget gallery — free, no sign-up.

Open the Calibration Methods Lab

Frequently asked questions

What can visitors do with the embedded Calibration Methods lab?: They can toggle between the external-standard and standard-addition methods, then move sliders for sensitivity (slope), matrix effect, unknown concentration, measurement noise and the blank/baseline. The fitted line, the recovered unknown and — for standard addition — the back-extrapolation to the x-intercept all update live.
What does the Calibration Methods lab teach?: It shows why the method you choose changes the answer. Add a matrix effect and the external-standard result drifts off the true value, while standard addition — built in the sample matrix — extrapolates back to the correct concentration. It makes the trade-off between the two calibration strategies visible instead of abstract.
Is embedding the Calibration Methods lab free?: Yes. It is free to embed on any site, with no account, no API key and no usage limits. The whole simulation runs in your visitor’s own browser, so there is no server cost — we only ask that you keep the small "Calibration Methods by LK Forge" credit line that comes with the embed code.
What iframe height should I use, especially on mobile?: The snippet ships with height="900", which is tall enough that the plot, the sliders and the readouts all fit without clipping even on a narrow phone, where they stack into a single column. On a wider page the widget simply centres within its max-width of 560px. You can lower the height if you want it shorter, but 900 is the safe default across screen sizes.
Where can I embed it — WordPress, Wix, Squarespace, Notion?: Anywhere you can add HTML, because it is a standard iframe. In WordPress use a Custom HTML block; in Squarespace a Code/Embed block; in Wix an Embed HTML element; in Ghost an HTML card; in Notion paste the /embed/calibration-methods/ URL as an embed. On a plain HTML page or an intranet, paste the snippet straight into the markup.
Does the embedded lab track visitors or set cookies?: No. Everything runs locally in the visitor’s browser — nothing is uploaded. The embed sets no tracking cookies and sends no analytics, so it is safe to place on a privacy-sensitive site, an intranet, or a page for students.