{"id":162,"date":"2017-02-13T20:53:43","date_gmt":"2017-02-13T20:53:43","guid":{"rendered":"http:\/\/www.staff.ncl.ac.uk\/anke.neumann\/?page_id=162"},"modified":"2023-02-21T20:24:38","modified_gmt":"2023-02-21T20:24:38","slug":"162-2","status":"publish","type":"page","link":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/162-2\/","title":{"rendered":"The joys of lab work"},"content":{"rendered":"

M\u00f6ssbauer\u00a0cold head maintenance (July 2022)<\/strong><\/p>\n

Once again – the M\u00f6ssbauer cold head needed maintenance; this time it was a ‘hot swap’.<\/p>\n

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The cryostat needed only partial disassembling.<\/figcaption><\/figure>\n
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And once the new (refurbished) cold head was installed, 4 K was on the books again.<\/figcaption><\/figure>\n

Maggie’s large bio-columns are being put to work! (July 2022)<\/strong><\/p>\n

Maggie showing off re replicate bio-columns, filled with different clay minerals and incubated with local pond water. Fingers crossed for successful bio-reduction and treatment cycles!<\/p>\n

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Maggie showing the setup she developed. (Anke is clearly impressed and happy.)<\/figcaption><\/figure>\n
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Maggie’s array of bio-columns.<\/figcaption><\/figure>\n

Lab work in the time of Covid19 (September 2020)<\/strong><\/p>\n

And we are back in the lab!!<\/p>\n

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Maggie setting up her columns, observing all Covid19 safety guidance.<\/figcaption><\/figure>\n
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Harry showing the CV19-safe Environmental Redox Chemistry Lab.<\/figcaption><\/figure>\n

M\u00f6ssbauer coldhead maintenance (2019):<\/strong><\/p>\n

Disassembling the cryostat:<\/p>\n

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\n
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Harry disassembling the table.<\/figcaption><\/figure>\n<\/div>\n
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Critical stages.<\/figcaption><\/figure>\n<\/div>\n
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\n
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The cryostat is set free.<\/figcaption><\/figure>\n<\/div>\n
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At the heart of the cryostat.<\/figcaption><\/figure>\n<\/div>\n
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\n
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Almost there (with Eric from Semimetrics)!<\/figcaption><\/figure>\n<\/div>\n
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All stages neatly arranged until reassembling.<\/figcaption><\/figure>\n<\/div>\n

Reassembling the cryostat after maintenance:<\/p>\n

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\n
\"\"<\/a>
All wires neatly soldered back on.<\/figcaption><\/figure>\n<\/div>\n
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The cryostat is ready to go back to work.<\/figcaption><\/figure>\n<\/div>\n
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And we are back in (M\u00f6ssbauer) business!<\/figcaption><\/figure>\n

Wastewater treatment – Jim is helping Pani with her experiments in the glovebox (2018):<\/strong><\/p>\n

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Jim explaining some details.<\/figcaption><\/figure>\n<\/div>\n
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Pani’s replicate experiments.<\/figcaption><\/figure>\n<\/div>\n
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Keeping the light out.<\/figcaption><\/figure>\n<\/div>\n
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Well prepared for the big experiment!<\/figcaption><\/figure>\n<\/div>\n

Kath’s display of\u00a0colors (2017):<\/strong><\/p>\n

\"7-reduced-nontronites-sitting-on-a-wall-5-91-feii\"<\/a>
Shades of green and blue: (partly) reduced clay mineral NAu-1<\/figcaption><\/figure>\n
\"native-and-fully-red-nau-1\"<\/a>
Native and fully reduced clay mineral NAu-1<\/figcaption><\/figure>\n
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\"fe-tiron-ox-right-red-left\"<\/a>
Fe-tiron reduced (left) and oxidized (right)<\/figcaption><\/figure>\n<\/div>\n
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\"fe-tiron-nau-1-left-fe-tiron-after-reaction-with-nac-right\"<\/a>
Fe-tiron with NAu-1 before (left) and after reaction with NAC (right)<\/figcaption><\/figure>\n<\/div>\n<\/div>\n
\"aqdsox-left-aqds-red-right\"<\/a>
AQDS and reduced form of AQDS (AQDSH2)<\/figcaption><\/figure>\n

Jim’s clay minerals et al\u00a0(2017):<\/strong><\/p>\n

\"swy-2-nau-1-nau-2\"<\/a>
Clay minerals in preparation: SWy-2, NAu-1, and NAu-2<\/figcaption><\/figure>\n
\"biotite-cleavage\"<\/a>
Biotite cleavage<\/figcaption><\/figure>\n
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\"before-and-after-adding-swy-2-to-fresh-feoh2\"<\/a>
Fresh ferrous hydroxide before (left) and after adding SWy-2 (right)<\/figcaption><\/figure>\n<\/div>\n
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\"feoh2-after-1-week-reacting-with-tce-slight-colour-change-on-flocs\"<\/a>
Ferrous hydroxide after 1 week reaction with TCE<\/figcaption><\/figure>\n

M\u00f6ssbauer coldhead maintenance (2017):<\/strong><\/p>\n

Disassembling the cryostat:<\/p>\n

\"img_1131\"<\/a>
Stage 1<\/figcaption><\/figure>\n
\"img_1133\"<\/a>
Stage 2<\/figcaption><\/figure>\n
\"img_1132\"<\/a>
Stage 3<\/figcaption><\/figure>\n
\"img_1140_rot\"<\/a>
Set up for storage in an orderly manner.<\/figcaption><\/figure>\n

Reassembling the cryostat after 1 week maintenance:<\/p>\n

\"img_1163\"<\/a>
Looks the same – works the same.<\/figcaption><\/figure>\n
\"img_1166\"<\/a>
Temperature control re-established, with the sound back to normal.<\/figcaption><\/figure>\n<\/div>\n
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Clean up after MSc projects (2016):<\/strong>
\n\"img_0991\"<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

M\u00f6ssbauer\u00a0cold head maintenance (July 2022) Once again – the M\u00f6ssbauer cold head needed maintenance; this time it was a ‘hot swap’. Maggie’s large bio-columns are being put to work! (July 2022) Maggie showing off re replicate bio-columns, filled with different clay minerals and incubated with local pond water. Fingers crossed for successful bio-reduction and treatment … Continue reading The joys of lab work<\/span><\/a><\/p>\n","protected":false},"author":1129,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-162","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/wp-json\/wp\/v2\/pages\/162","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/wp-json\/wp\/v2\/users\/1129"}],"replies":[{"embeddable":true,"href":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/wp-json\/wp\/v2\/comments?post=162"}],"version-history":[{"count":41,"href":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/wp-json\/wp\/v2\/pages\/162\/revisions"}],"predecessor-version":[{"id":783,"href":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/wp-json\/wp\/v2\/pages\/162\/revisions\/783"}],"wp:attachment":[{"href":"https:\/\/www.staff.ncl.ac.uk\/anke.neumann\/wp-json\/wp\/v2\/media?parent=162"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}