Cuma, Mart 29, 2024

The FormacsHT Total Organic Carbon (TOC) Analyzer

The FormacsHT TOC/TN analyzers provide fast, reliable analysis of Total Organic Carbon (TOC) and Total Nitrogen (TN) in liquid samples using high temperature catalytic combustion.

The units are designed to measure and handle the concentration of nitrogen and/or carbon fractions from various sample matrices. The analyzer can be operated as stand-alone analyzer, but for complete automation a random access autosampler is available.

The instrument is supplied customized for the sample type and optimized from a range of different catalysts and operation temperatures allowing the analysis of all carbon and  nitrogen fractions present in the sample.

The fractions can be measured sequentially or simultaneously with automated sample pretreatments such as acidification and purging.

Features

• Stand-alone TOC operation or with auto-sampler,
• Homogenization by automated stirring (rod or
• magnetic),
• Robust rotary septumless injection ports,
• Integrated Peltier cooler for optimum moisture
• removal,
• Large variety of vial sizes including septum-closed vials,
• Allows a true system blank analysis,
• Method according to EPA 415.1, Standard Methods
• 5310B, DIN 38409 H3, ASTM D-5173, USP <643>,
• EU 2.2.44, ISO 8245, EN 1484, USEPA 9060A.

A variety of options and accessories are available such as the PrimacsMCS add-on module for Carbon determination in solid materials, the ND25 Total Nitrogen detector and the possibility of measuring Nitrates and Nitrites to provide a true Kjeldahl alternative.

The FormacsHT analyzer meets the latest requirements for any laboratory from low level up to extended high concentration ranges.

Application Fields:

• Drinking water.
• Waste water.
• Surface water.
• Sea water.
• High saline waters.
• Process control.
• Pharmaceutical industry.
• Soil extracts.
• Others.

The FormacsHT analyzer can be operated as stand-alone analyzer. A random access auto sampler is available for complete automation.

The FormacsHT Analyzer measures Total Organic Carbon (TOC) by analyzing the Total Carbon (TC) and the Total Inorganic Carbon (TIC). Total Carbon (TC) is obtained by injection of the sample into a high temperature combustion furnace.

Carbon Fractions

TC is converted to Carbon dioxide (CO2) at temperatures up to 950°C by catalytic oxidation. The CO2 formed is subsequently dispersed into the carrier gas and the CO2 concentration is measured by a nondispersive infrared detector (NDIR). TIC is determined by injecting the sample into a reactor containing acid, converting inorganic carbon (IC) to CO2. The NDIR measures the CO2 concentration formed during acidifi cation. The TOC concentration is calculated by automatically subtracting the TIC from the TC. (TOC=TC-TIC)

In addition, Non Purgeable Organic Carbon (NPOC) can be measured by automatic acidifi cation and purging of the sample. TIC and the Purgeable Organic Carbon (POC) are than removed. NPOC remains in the sample and is measured directly by injecting the sample into the high temperature combustion furnace.

The NPOC equals the TOC if the POC concentration is insignifi cant (TOC = NPOC + POC). Optionally, the FormacsHT can be confi gured to measure POC directly. POC is purged from the liquid sample. The carrier gas + POC are injected in the high temperature combustion furnace and measured by NDIR.

TN & TKN Analysis

The ND25 detector can be added to the FormacsHT Analyzer for Total Nitrogen (TN) analysis. A wide concentration range of TN can be measured with high in a short analysis time using chemiluminescence detection (CLD). The sample is injected into the high temperature furnace where it is catalytically combusted.

Oxidative pyrolysis causes the chemically bound nitrogen to be converted to Nitric Oxide (NO). In the ND25 detector, NO reacts to form metastable Nitrogen dioxide. The photons emitted from the rapid decay of the metastable nitrogen dioxide are detected by a photomultiplier tube.

The FormacsHT analyzer also provides a unique costeffective and safer alternative for Total Kjeldahl Nitrogen (TKN) analysis, by an integrated NN-reactor for the analysis of Nitrate + Nitrite (NN).

The TKN value is determined in two steps, i.e. the analysis of TN and the analysis of NO3 + NO2 via chemical reduction, where NO3 and NO2 are reduced to NO and detected via CLD detection. The TKN value is obtained automatically by subtraction: TKN = TN – NN. This unique alternative method of TKN analysis results in a very fast analysis time (5 min.) and eliminates the use of hazardous digestion acids. The FormacsHT TOC/TN analyzer combines the automation of TOC, TN and TKN
all in one system.

Features

• Simultaneous TOC and TN measurements.
• CLD detector for analysis of TN and NO2 + NO3.
• Excellent alternative for Total Kjeldahl Analysis.
• Low detection limits.
• Fast analyses using no hazardous reagents.
• No sample preparation required.
• Wide dynamic range.
• Low maintenance unit.
• Method according to EN 12260, ISO 11905-2, ASTM D5176-91, DIN 38409 H27.

PrimacsMCS Total Organic Carbon (TOC) Module for Solid Samples

The PrimacsMCS add-on module analyses solid materials and operates in combination with the FormacsHT liquid sample analyzers, offering an economical solution for laboratories handling a large variety of sample matrices.

The unit consists of two integrated reactors for both TC and TIC analysis without any sample preparation. The TC is determined by catalytic oxidation of the sample at 1100°C, which converts the Carbon to CO2. TIC is determined by acidification of the sample in a separate reactor, which converts IC to CO2. The PrimacsMCS uses the NDIR detector of the Formacsseries for the detection of CO2.

The PrimacsMCS analyses TC, TIC and TOC. The software calculates the TOC concentration of the samples by subtraction – (TC – TIC = TOC).

Features

• Automatic balance interfacing.
• Sample weights up to 3 grams.
• Range of 1 mg to 40 mg absolute carbon.
• Unique vertical sample introduction system.
• Reusable quartz sample crucibles.
• Economical concept.
• Requires minimal bench space.
• Integrated TC and TIC reactors.
• No sample pretreatment required.
• Method according ISO 10649, ISO 13137, EN 13639 EPA 415.1, ASTM D-2579, US EPA 9060A.

Abbreviations

• TOC: Total Organıc Carbon.
• TN: Total Nitrogen.
• TIC: Total Inorganic Carbon.
• IC: Inorganic Carbon.
• NPOC: Non Purgeable Organic Carbon.
• TKN: Total Kjeldahl Nitrogen.
• POC: Purgeable Organic Carbon.

 


Bircan Bozkaya
Environmental Engineer
Product Specialist
Trio Teknik Cihazlar

İLGİNİZİ ÇEKEBİLİR

SECTION SPONSOR

11,034TakipçilerTakip Et
808TakipçilerTakip Et
1,500AboneAbone Ol

Featured News