930 compact ic

Manufactured by Metrohm

The 930 Compact IC Flex is an ion chromatography (IC) system designed for routine anion and cation analysis. It features a compact and robust design with a small footprint, suitable for installation in limited laboratory spaces. The system combines high-performance liquid chromatography (HPLC) with suppressed conductivity detection, providing reliable and accurate measurements of ion concentrations in various sample types.

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Lab products found in correlation

Nexion 1000, by PerkinElmer (1 mentions)

Spelling variants of this product

930 Compact IC Flex (31 citations) 930 Compact IC Flex apparatus (3 citations) 930 Compact (2 citations) 930 Compact IC Flex 1 (2 citations)

3 protocols using 930 compact ic

Quantification of Haloacetic Acids and Chloride

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All aqueous samples for TCAA, DCAA, MCAA, AA, and chloride were first filtered though 0.22-μm polyvinylidene difluoride syringe filter and then quantified using anionic chromatography (IC) (Metrohm 930 Compact IC). The IC had a Metrosep A supp 5 −250/4.0 column and an eluent of 1 mM sodium bicarbonate (NaHCO₃) and 3.2 mM sodium carbonate (Na₂CO₃) with a flow rate of 0.7 mL/min. The detection limits of TCAA, DCAA, MCAA, AA, and chloride were 15, 15, 10, 10, and 3 μg/L, respectively.
To verify the actual PdNPs loading on membrane surface, an entire bundle of fiber membranes coated with PdNPs was dissolved through microwave-assisted total digestion (Luo et al., 2020 ) at the end of catalysts loading batch tests. An inductively coupled plasma mass spectrometry (ICP-MS; PerkinElmer NexION^Ⓡ 1000) was used to measure the Pd concentration of digestied Pd solutions and effuents taken during continuous operation.

Cai Y., Long X., Luo Y.H., Zhou C, & Rittmann B.E. (2021). Stable dechlorination of Trichloroacetic Acid (TCAA) to acetic acid catalyzed by palladium nanoparticles deposited on H2-transfer membranes. Water Research, 192, 116841.

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Quantifying Sulfur Metabolism in Thermophilic Cultures

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Triplicate 100 ml dilutions with 20 ml headspace were prepared from C₆- and C₁₄-oxidizing cultures, supplied with substrate and incubated at 70 °C, complemented by a substrate-free negative control. Sulfate and DIC concentrations were measured from weekly subsamples until the cultures had reached sulfide concentrations of ≥15 mM. Samples were sterile filtered using a GTTP polycarbonate filter (0.2 μM pore size; Millipore). For DIC measurements, 1 ml filtrate was transferred into synthetic-air-purged 12 ml Exetainer vials (Labco) filled with 100 µl phosphoric acid (45%). After 10 h of equilibration, headspace DIC was measured by isotope ratio infrared spectroscopy (Thermo Fisher; Delta Ray IRIS with URI connect and Cetac ASX-7100 autosampler) with standards of known concentration. To determine sulfate concentrations, 1 ml of the filtrate was fixed in 0.5 ml 100 mM zinc acetate. The sample was centrifuged and the clear supernatant was diluted 1:50 in deionized water. Sulfate was measured by ion chromatography (930 compact IC, Metrohm) against standards with known concentrations.

Zehnle H., Laso-Pérez R., Lipp J., Riedel D., Benito Merino D., Teske A, & Wegener G. (2023). Candidatus Alkanophaga archaea from Guaymas Basin hydrothermal vent sediment oxidize petroleum alkanes. Nature Microbiology, 8(7), 1199-1212.

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Quantifying Sulfide and Sulfate Levels

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Sulfide and sulfate concentrations were determined from the Zn acetate–fixed medium samples. Exact sample/fixative ratios were determined by weighing empty vials, Zn acetate–filled vials, and vials with samples. To determine sulfide concentrations, zinc acetate–fixed samples were resuspended, and 100-ml aliquots were sampled. Samples were measured using the diamine assay and spectrophotometric detection using standards with known sulfide concentrations (65 , 66 ). For sulfate measurements, zinc-fixed samples were 1:50 diluted in Milli-Q water and measured by ion chromatography (930 compact IC, Metrohm) against standards with known sulfate concentrations.

Wegener G., Gropp J., Taubner H., Halevy I, & Elvert M. (2021). Sulfate-dependent reversibility of intracellular reactions explains the opposing isotope effects in the anaerobic oxidation of methane. Science Advances, 7(19), eabe4939.

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