These are some basic requirements for the installation of an LC-OCD-OND system.<\/p>\n
if you need further information, please do not hesitate, to contact us.<\/p>\n
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Space<\/strong><\/p>\n Floor system, not bench system. Minimal floor space required: 90 cm x 70 cm (W\/D).<\/p>\n Climatisation<\/strong><\/p>\n Laboratory conditions preferred, non-laboratory conditions possible.<\/p>\n Room should be climatized to any temperature between 18 – 27 \u00b0C \u00b1 2\u00b0C. Do not expose LC-OCD-OND to direct sunlight.<\/p>\n Laboratory environment<\/strong><\/p>\n Please try to make the lab where LC-OCD-OND is positioned to a TOC-sensitive area.<\/p>\n This includes the following:<\/p>\n Please note: Volatile organics do not impair the performance of the LC-OCD system, but organics may contaminate samples.<\/p>\n<\/div>\n Gases<\/strong><\/p>\n For operation nitrogen 4.0 or better is required. Supply either on-site (pressure bottle) or central.<\/p>\n Nitrogen consumption beween 180-240 sccm\/min. (50L-bottle lasts for about 4 weeks continuous operation).<\/p>\n Nitrogen must be reduced to 0.5-1.0 bar. Pressure reducer must have a Swagelok 1\/8″ outlet. Teflon or SS tubing to LC-OCD-OND can be pre-mounted or will be carried out by us.<\/p>\n Note: Conventional Nitrogen Generators with PSA often do not supply the quality required, due to fluctuations in CO2 content! Electricity<\/strong><\/p>\n Model 9 (2018+):<\/em> Model 8 (2008-2017):<\/em> Waste<\/strong><\/p>\n Waste produced is mild phosphate buffer pH 5, about 5 g\/L. Waste is exported with external pump either to a nearby container, or better with a tubing to a sink.<\/p>\n We kindly ask customer to provide silicon or PP tubing for connection of waste pump to sink.<\/p>\n Chemicals<\/strong><\/p>\n We kindly ask customers to have the following chemicals on stock prior to installation of system. Mobile Phase<\/em><\/p>\n Acidification solution<\/em><\/p>\n Calibration of Detectors<\/em><\/p>\n Calibration of Molecular masses<\/em><\/p>\n Glassware<\/strong><\/p>\n Please have the following materials on stock:<\/p>\n For cleaning of vials: Also standard laboratory equipment for dilution and weighting-in is required.<\/p>\n Staff<\/strong><\/p>\n We recommend to have at least 2 persons being instructed.<\/p>\n We suggest to have one person identified as main responsible person or principal operator. <\/p>\n
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\nShort temperature changes in excess of \u00b1 2\u00b0C may induce slight baseline drifts.<\/p>\n
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\nFor such systems additional purification steps may be necessary. In case of uncertainty we recommend to provide a 10L-bottle for testing.<\/p>\n
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\n100 – 240 V, 50\/60 Hz are possible. Consumption is about 450 W\/hr. One socket only is required for LC-OCD-OND.
\nMaximal distance of sockets to LC-OCD-OND is 5 m. Customer is kindly asked to provide at least two local plugs in case plugs have to be changed.<\/p>\n
\n220 – 240 V, 50 Hz are required. Consumption is about 400 W\/hr. At least 3 sockets are required, one for LC-OCD-OND, one for Laptop and one for waste water pump.
\nMaximal distance of sockets to LC-OCD-OND is 5 m. Customer is kindly asked to provide at least two local plugs in case plugs have to be changed.<\/p>\n
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\nSystems will be shipped with smaller amounts of chemicals for about 1-month operation<\/p>\n\n
\nCAS 7778-77-0, e.g. Sigma Aldrich P0662-1KG or Merck 1.04873.1000<\/li>\n
\nCAS 10028-24-7, e.g. Sigma Aldrich 30435-1KG or Merck 1.06580.1000<\/li>\n<\/ul>\n\n
\nCAS 7664-38-2, e.g. Sigma Aldrich 695017-2.5L or Merck 1.00573.2500<\/li>\n
\nCAS 7727-21-1, e.g. Sigma Aldrich 60489-1KG or Merck 1.05091.1000<\/li>\n<\/ul>\n\n
\nCAS 877-24-7, e.g. Sigma Aldrich 60359-250G or Merck 1.04874.0250<\/li>\n
\nCAS 7757-79-1, e.g. Sigma Aldrich 31263-100G or Merck 1.05063.0500<\/li>\n<\/ul>\n\n
\nOrder from https:\/\/ihss.humicsubstances.org
\n(Small amounts of Humic Substances will be shipped with LC-OCD systems.)<\/li>\n<\/ul>\n<\/div>\n\n
\nWe recommend 3 basins about 10 L each for chemical cleaning.
\nAlternative: A kiln or oven for heating up vials to 550 \u00b0C.<\/p>\n
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\nThis person has to make sure that system is running well and also has to organise and train supporting personal in case of absence.
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