{"id":2247,"date":"2019-09-27T08:43:57","date_gmt":"2019-09-27T15:43:57","guid":{"rendered":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/?p=2247"},"modified":"2019-09-27T08:43:57","modified_gmt":"2019-09-27T15:43:57","slug":"update-av500-system-back-to-normal-operations","status":"publish","type":"post","link":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/2019\/09\/update-av500-system-back-to-normal-operations\/","title":{"rendered":"UPDATE ! AV500 &#8211;  SYSTEM BACK TO NORMAL OPERATIONS"},"content":{"rendered":"<p>There are two updates to be highlighted here :<\/p>\n<ul>\n<li><strong>AV500 is back to a three channel configuration after an (expensive) replacement of a failed circuit board.\u00a0 You can therefore plan {1H, X, Y} type experiments.\u00a0<\/strong><\/li>\n<li><strong>The TBI-1H {13C,X} &#8211; Z gradient probe has been placed back in the magnet.\u00a0\u00a0<\/strong>\n<ul>\n<li style=\"list-style-type: none;\"><\/li>\n<li>This probe has a dedicated 13C channel.<\/li>\n<li>\u00a0Along with X-channel, in principle you can decouple two nuclei while observing 1H.\u00a0 1H {record FID } while; (13C + X nucleus) {decouple simultaneously}<\/li>\n<\/ul>\n<\/li>\n<li><b>OTHER <\/b><span style=\"color: #000000;\"><b>items<\/b><\/span><b> of importance :<\/b>\n<ul>\n<li>We shall provide <strong>two different standard<\/strong> shim sets from now on.\n<ul>\n<li><em><strong>(a) for all samples dissolved in Deutero-Organic solvents <\/strong><\/em><\/li>\n<li><em><strong>(b) Aqueous samples with H2O+D2O combination as solvent<\/strong><\/em><\/li>\n<li><strong>LOOK AT THE PRINTED SHEET AFFIXED TO THE CONSOLE ON YOUR RIGHT FOR THE NAMES !<\/strong><\/li>\n<\/ul>\n<\/li>\n<li>The reason for the above is a pragmatic one :\u00a0 Topshim can optimize both Z-axis and XY plane shims with H2O+D2O.\u00a0 But, it can optimize <strong>only<\/strong> the Z-axis shims with 2H based solvents.<\/li>\n<li>Unless you have been touching up the low order X and Y shims by hand, the resolution you get will be rather substandard for all the 2H based solvents.\u00a0 A quick and minimal workaround is to provide a standard shim set with X,Y, XZ and YZ shims pre-optimized. This is what we have decided to provide.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Please feel free to send your comments and questions on the above.<\/p>\n<p>Thank you once again for patiently enduring the recent down time.<\/p>\n<p>NMR Facility Manager<\/p>\n<p>9\/27\/19<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There are two updates to be highlighted here : AV500 is back to a three channel configuration after an (expensive) replacement of a failed circuit board.\u00a0 You can therefore plan {1H, X, Y} type experiments.\u00a0 The TBI-1H {13C,X} &#8211; Z gradient probe has been placed back in the magnet.\u00a0\u00a0 This probe has a dedicated 13C [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,9,7],"tags":[],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/2247"}],"collection":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/comments?post=2247"}],"version-history":[{"count":1,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/2247\/revisions"}],"predecessor-version":[{"id":2248,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/posts\/2247\/revisions\/2248"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/media?parent=2247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/categories?post=2247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/depts.washington.edu\/chemwp\/chemwpnmr\/wp-json\/wp\/v2\/tags?post=2247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}