Techniques of Sampling: Solids, Liquids & Gases | Analytical Chemistry | B.Sc/M.Sc

Описание: In this video, we explain Techniques of Sampling for Solids, Liquids, and Gases, which is one of the most important topics in Analytical Chemistry.
Accurate sampling ensures reliable results, correct analysis, and high-quality data in chemical investigations.

🔹 🔍 What is Sampling?

Sampling वह process है जिसमें पूरे material का छोटा सा representative portion analysis के लिए लिया जाता है.

Agar sampling sahi nahi hogi → analysis bhi incorrect hoga.

🔹 📌 Topics Covered in This Video:
✔ 1. Sampling of Solids (ठोस नमूनों का सैम्पलिंग)

– Coning & Quartering
– Riffling method
– Random sampling
– Grab & Composite sampling
– Powdered samples handling

✔ 2. Sampling of Liquids (द्रव नमूनों का सैम्पलिंग)

– Direct sampling
– Composite liquid sampling
– Automatic samplers
– Sampling of viscous liquids
– Homogenization of liquids

✔ 3. Sampling of Gases (गैस नमूनों का सैम्पलिंग)

– Gas syringe method
– Evacuated flask method
– Grab sampling
– Continuous gas sampling
– Gas bags & canister sampling

🔹 📘 Extra Concepts Explained:

✔ Importance of Sampling
✔ Errors in Sampling
✔ Precautions during Sampling
✔ How to preserve samples
✔ Representative sampling technique
✔ Hindi + English explanation

🎯 Who Should Watch?

B.Sc Chemistry
M.Sc Chemistry
IIT-JAM
CSIR-NET
GATE Chemistry
Analytical Chemistry Students
Pharmacy, Environmental Science & Lab Analysts

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