All Questions
0
votes
0
answers
743
views
Carryover – The Hidden Threat to Analytical Accuracy
Question image

In analytical science, precision is non-negotiable. Yet, one silent contaminant can distort results and jeopardize data integrity — carryover. Wh...

Avatar
youhana Hosny asked 9 m ago
0
votes
0
answers
1164
views
Why Spike Impurities Below LOQ in Method Validation (Related Substances – Accuracy Studies)?
Question image

During HPLC method validation for related substances, spiking impurities at levels below the LOQ may seem unnecessary—since values below LOQ are “...

Avatar
youhana Hosny asked 9 m ago
1
votes
1
answers
167
views
HPLC baseline noise

When using Acetonitrile and water composition in the ratio 50:50 premixed and sonicated for 10mins and ran one injection of blank,it's look like ...

HPLC
Avatar
Thalapathy asked 9 m ago
-1
votes
1
answers
111
views
Assay Simeticone

Hello, good morning. Can anyone help me a method for quantifying Simeticone using reverse-phase HPLC? Thanks you i'm avance...

HPLC
Avatar
ave. fenix asked 9 m ago
0
votes
0
answers
836
views
Importance of Filtration of Buffer Solution in Mobile Phase Preparation
Question image

In chromatography, purity begins before the first injection. One of the most overlooked yet critical steps is the filtration of buffer solutions used...

Avatar
youhana Hosny asked 9 m ago
3
votes
1
answers
152
views
HPLC Base Line Issue

In my HPLC Agelent 1260 infinity model, base line going to upward direction and my buffer is Ammonium Bicarbonate with pH - 8 and mixed with MeOH. Run...

HPLC
Avatar
Yash asked 10 m ago
0
votes
0
answers
832
views
How to Read and Interpret FTIR Spectra — A Complete Guide??
Question image

FTIR (Fourier Transform Infrared Spectroscopy) is a fundamental technique in analytical chemistry, materials science, and nanotechnology, providing a ...

Avatar
youhana Hosny asked 10 m ago
0
votes
0
answers
1122
views
HPLC Troubleshooting: Common Questions and Expert Answers
Question image

Q: Why is the HPLC baseline noisy? A: Common reasons include air bubbles in the system, an aging detector lamp, a contaminated flow cell, or impuritie...

Avatar
youhana Hosny asked 10 m ago
0
votes
0
answers
833
views
Gas Chromatography (GC) is a powerful analytical technique, How It Works?
Question image

Gas Chromatography (GC) is a powerful analytical technique widely used to separate and analyze volatile organic compounds across a variety of sample t...

Avatar
youhana Hosny asked 10 m ago