Analyte: nitrite

Applications

ion chromatography

Preserving eluent quality with dedicated storage protected from ambient carbon dioxide

To ensure that liquid chromatography analysis methods meet regulatory demands of retention repeatability as dictated by pharmacopoeia and the ICH guidelines, it is important to protect weakly buffered eluents from ambient carbon dioxide. The formation of carbonate species will otherwise change the pH and strength of the eluent, thus shifting retention.

ion chromatography

Screening of contaminants and forced degradation products in lithium ion battery electrolyte

Electrolytes in rechargeable batteries for cars, mobile phones, and other portable electric devices typically contain negatively charged counterions that together with lithium and a non-aqueous solvent form an ionic liquid. The bis(fluorosulfonyl)imide anion is a rather new ionic liquid constituent which thus need new quality control procedures.

ion chromatography

Comparing suppressed and non-suppressed ion chromatography

Suppressed ion chromatography with conductivity detection is a powerful and sensitive technique to analyse charged ionic species, especially anions of strong acids. The chemically regenerated membrane suppressor Xenoic® XAMS can enable analysis of such anions down to levels of a few microgram per litre (part per billion, ppb).

ion chromatography

Hydroxide gradient elution of organic acids and inorganic anions

Gradient elution is a powerful tool when aiming to separate many compounds having a wide range of different chemical characteristics. Hydroxide gradients are the most common approach in ion chromatography since they can be converted into pure water with nearly zero conductivity.

ion chromatography

Separation of six inorganic anions using Shodex IC SI-37 4D column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of six inorganic anions using IonPac AS19 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of nine inorganic anions including chlorite and bromate using Shodex IC SI-52 4E column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of four inorganic anions using Shodex IC SI-50 4E column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of five inorganic anions using Metrosep A Supp 5 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of seven inorganic anions using ICSep AN2 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of seven inorganic anions using ICSep AN1 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of six inorganic anions using Metrosep A Supp 10 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of seven inorganic anions using Metrosep A Supp 16 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of seven inorganic anions using ICSep AN300 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of seven anions and acetate using IonPac AS22 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of seven anions and acetate using IonPac AS14 column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

ion chromatography

Separation of seven inorganic anions using IonPac AS4A-SC column

Separation of inorganic anion standards at eluent conditions recommended by the column manufacturer.

Talk to us

Get in contact
I’ll be happy to answer any questions you might have regarding our products and services.

Tobias Jonsson
CEO, PhD in chemistry
Mobile: +46 705783490
E-mail: tobias@diduco.com

Diduco is a leading provider of professional services in high performance liquid chromatography and manufacturer of the Xenoic® XAMS chemical suppressor and ASUREX automatic regenerator for ion chromatography.

Diduco AB
Tvistevägen 48C
90736 Umeå
Sweden