{"id":692,"date":"2024-04-11T01:41:10","date_gmt":"2024-04-10T22:41:10","guid":{"rendered":"https:\/\/sisu.ut.ee\/heritage-analysis\/self-test-4-4\/"},"modified":"2024-07-16T20:39:00","modified_gmt":"2024-07-16T17:39:00","slug":"self-test-4-4","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/heritage-analysis\/self-test-4-4\/","title":{"rendered":"SELF TEST 4.4"},"content":{"rendered":"<div id=\"watupro_quiz\" class=\"quiz-area single-page-quiz\">\n<p id=\"submittingExam13\" style=\"display:none;text-align:center;\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\"><\/p>\n\n<div class=\"watupro-exam-description\" id=\"description-quiz-13\"><h2><span style=\"color: #000000;\">Questions about\u00a0<\/span><span style=\"color: #b22222;\"><strong>GC-C-IRMS<\/strong><\/span><span style=\"color: #000000;\">\u00a0and <\/span><span style=\"color: #b22222;\"><strong>EA-IRMS<\/strong><\/span><span style=\"color: #000000;\">.<\/span><\/h2>\n<h2><\/h2>\n<\/div>\n\n<form action=\"\" method=\"post\" class=\"quiz-form\" id=\"quiz-13\" enctype=\"multipart\/form-data\">\n<div class=\"watu-question \" id=\"question-1\" style=\";\"><div id=\"questionWrap-1\" class=\"  watupro-required-95 watupro-question-id-95\">\n\t\t\t<div class=\"question-content\"><div><p>Which of the following statements are true for GC-C-IRMS? <span style=\"font-size:12px;\">(There can be one or more correct answers)<\/span><\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_1\" value=\"95\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType95\" class=\"answerTypeCnt1\" value=\"checkbox\"><input type=\"hidden\" id=\"watupro-required-question-95\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices95\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-95[]\" id=\"answer-id-426\" class=\"answer   answerof-95 \" value=\"426\"><label for=\"answer-id-426\" id=\"answer-label-426\" class=\" answer\"><span><p>The analytes must be volatile<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-95[]\" id=\"answer-id-428\" class=\"answer   answerof-95 \" value=\"428\"><label for=\"answer-id-428\" id=\"answer-label-428\" class=\" answer\"><span><p>The sample is usually in solid form<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-95[]\" id=\"answer-id-425\" class=\"answer   answerof-95 \" value=\"425\"><label for=\"answer-id-425\" id=\"answer-label-425\" class=\" answer\"><span><p>Faraday plates are used to detect ions<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-95[]\" id=\"answer-id-427\" class=\"answer   answerof-95 \" value=\"427\"><label for=\"answer-id-427\" id=\"answer-label-427\" class=\" answer\"><span><p>Specific compound\u2019s isotopic ratios can be measured<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-2\" style=\";\"><div id=\"questionWrap-2\" class=\"  watupro-required-92 watupro-question-id-92\">\n\t\t\t<div class=\"question-content\"><div><p>What is the major difference between GC-C-IRMS and EA-IRMS?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_2\" value=\"92\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType92\" class=\"answerTypeCnt2\" value=\"checkbox\"><input type=\"hidden\" id=\"watupro-required-question-92\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices92\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-92[]\" id=\"answer-id-411\" class=\"answer   answerof-92 \" value=\"411\"><label for=\"answer-id-411\" id=\"answer-label-411\" class=\" answer\"><span><p>GC-C-IRMS measures isotope ratios in single compounds, EA-IRMS in bulk samples<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-92[]\" id=\"answer-id-412\" class=\"answer   answerof-92 \" value=\"412\"><label for=\"answer-id-412\" id=\"answer-label-412\" class=\" answer\"><span><p>GC-C-IRMS is used to measure isotopes in gases, EA-IRMS in solid samples<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-92[]\" id=\"answer-id-413\" class=\"answer   answerof-92 \" value=\"413\"><label for=\"answer-id-413\" id=\"answer-label-413\" class=\" answer\"><span><p>GC-C-IRMS measures isotope ratios in bulk samples, EA-IRMS in single compounds<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-3\" style=\";\"><div id=\"questionWrap-3\" class=\"  watupro-required-94 watupro-question-id-94\">\n\t\t\t<div class=\"question-content\"><div><p>What are the main\u00a0elements for which\u00a0isotope measurements are carried out with GC-C-IRMS? <span style=\"font-size:12px;\">(Select all that apply)<\/span><\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_3\" value=\"94\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType94\" class=\"answerTypeCnt3\" value=\"checkbox\"><input type=\"hidden\" id=\"watupro-required-question-94\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices94\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-94[]\" id=\"answer-id-420\" class=\"answer   answerof-94 \" value=\"420\"><label for=\"answer-id-420\" id=\"answer-label-420\" class=\" answer\"><span><p>H<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-94[]\" id=\"answer-id-423\" class=\"answer   answerof-94 \" value=\"423\"><label for=\"answer-id-423\" id=\"answer-label-423\" class=\" answer\"><span><p>Sr<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-94[]\" id=\"answer-id-424\" class=\"answer   answerof-94 \" value=\"424\"><label for=\"answer-id-424\" id=\"answer-label-424\" class=\" answer\"><span><p>Fe<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-94[]\" id=\"answer-id-418\" class=\"answer   answerof-94 \" value=\"418\"><label for=\"answer-id-418\" id=\"answer-label-418\" class=\" answer\"><span><p>C<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-94[]\" id=\"answer-id-422\" class=\"answer   answerof-94 \" value=\"422\"><label for=\"answer-id-422\" id=\"answer-label-422\" class=\" answer\"><span><p>S<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-94[]\" id=\"answer-id-419\" class=\"answer   answerof-94 \" value=\"419\"><label for=\"answer-id-419\" id=\"answer-label-419\" class=\" answer\"><span><p>N<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-94[]\" id=\"answer-id-421\" class=\"answer   answerof-94 \" value=\"421\"><label for=\"answer-id-421\" id=\"answer-label-421\" class=\" answer\"><span><p>O<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-4\" style=\";\"><div id=\"questionWrap-4\" class=\"  watupro-required-97 watupro-question-id-97\">\n\t\t\t<div class=\"question-content\"><div><p>What is\/are the key issue(s) for any type or IRMS? <span style=\"font-size:12px;\">(There may be one or more correct answers)<\/span><\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_4\" value=\"97\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType97\" class=\"answerTypeCnt4\" value=\"checkbox\"><input type=\"hidden\" id=\"watupro-required-question-97\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices97\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-97[]\" id=\"answer-id-435\" class=\"answer   answerof-97 \" value=\"435\"><label for=\"answer-id-435\" id=\"answer-label-435\" class=\" answer\"><span><p>Ability to measure very accurately m\/z ratios of ions formed during combustion processes<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-97[]\" id=\"answer-id-436\" class=\"answer   answerof-97 \" value=\"436\"><label for=\"answer-id-436\" id=\"answer-label-436\" class=\" answer\"><span><p>Ability to have as high m\/z resolution as possible<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-97[]\" id=\"answer-id-432\" class=\"answer   answerof-97 \" value=\"432\"><label for=\"answer-id-432\" id=\"answer-label-432\" class=\" answer\"><span><p>Ability to measure very accurately the ratios of signal intensities originating from ions with different isotopic compositions<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-97[]\" id=\"answer-id-433\" class=\"answer   answerof-97 \" value=\"433\"><label for=\"answer-id-433\" id=\"answer-label-433\" class=\" answer\"><span><p>Ability to measure very accurately ratios of isotope abundances<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-97[]\" id=\"answer-id-434\" class=\"answer   answerof-97 \" value=\"434\"><label for=\"answer-id-434\" id=\"answer-label-434\" class=\" answer\"><span><p>Ability to measure very accurately atomic masses of the isotopes<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-5\" style=\";\"><div id=\"questionWrap-5\" class=\"  watupro-required-93 watupro-question-id-93\">\n\t\t\t<div class=\"question-content\"><div><p>What is a function of combustion unit in GC-C-IRMS?<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_5\" value=\"93\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType93\" class=\"answerTypeCnt5\" value=\"checkbox\"><input type=\"hidden\" id=\"watupro-required-question-93\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices93\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-93[]\" id=\"answer-id-414\" class=\"answer   answerof-93 \" value=\"414\"><label for=\"answer-id-414\" id=\"answer-label-414\" class=\" answer\"><span><p>Burns sample at high temperature to obtain suitable analyte gas\u00a0for feeding into MS<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-93[]\" id=\"answer-id-415\" class=\"answer   answerof-93 \" value=\"415\"><label for=\"answer-id-415\" id=\"answer-label-415\" class=\" answer\"><span><p>Separates isotopes<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-93[]\" id=\"answer-id-417\" class=\"answer   answerof-93 \" value=\"417\"><label for=\"answer-id-417\" id=\"answer-label-417\" class=\" answer\"><span><p>Burns sample at high temperature to obtain suitable analyte gas for feeding into GC<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-93[]\" id=\"answer-id-416\" class=\"answer   answerof-93 \" value=\"416\"><label for=\"answer-id-416\" id=\"answer-label-416\" class=\" answer\"><span><p>Cools down the sample<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-6\" style=\";\"><div id=\"questionWrap-6\" class=\"  watupro-required-98 watupro-question-id-98\">\n\t\t\t<div class=\"question-content\"><div><p>Carbon originating from C3 plants has more negative 13C value than carbon originating from C4 plants. What does that mean? <span style=\"font-size:12px;\">(There may be one or more correct answers)\u00a0<\/span><\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_6\" value=\"98\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType98\" class=\"answerTypeCnt6\" value=\"checkbox\"><input type=\"hidden\" id=\"watupro-required-question-98\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices98\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-98[]\" id=\"answer-id-441\" class=\"answer   answerof-98 \" value=\"441\"><label for=\"answer-id-441\" id=\"answer-label-441\" class=\" answer\"><span><p>Isotope fractionation is more extensive in C4 plants than in C3 plants<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-98[]\" id=\"answer-id-439\" class=\"answer   answerof-98 \" value=\"439\"><label for=\"answer-id-439\" id=\"answer-label-439\" class=\" answer\"><span><p>C3 plants contain on an average less <sup>13<\/sup>C than C4 plants<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-98[]\" id=\"answer-id-437\" class=\"answer   answerof-98 \" value=\"437\"><label for=\"answer-id-437\" id=\"answer-label-437\" class=\" answer\"><span><p>C3 plants are on an average less rich in carbon<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-98[]\" id=\"answer-id-438\" class=\"answer   answerof-98 \" value=\"438\"><label for=\"answer-id-438\" id=\"answer-label-438\" class=\" answer\"><span><p>C3 plants contain on an average more <sup>13<\/sup>C than C4 plants<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-98[]\" id=\"answer-id-440\" class=\"answer   answerof-98 \" value=\"440\"><label for=\"answer-id-440\" id=\"answer-label-440\" class=\" answer\"><span><p>Isotope fractionation is more extensive in C3 plants than in C4 plants<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div class=\"watu-question \" id=\"question-7\" style=\";\"><div id=\"questionWrap-7\" class=\"  watupro-required-96 watupro-question-id-96\">\n\t\t\t<div class=\"question-content\"><div><p>What is the \u03b4<sup>13<\/sup>C related to?\u00a0<\/p><\/div><input type=\"hidden\" name=\"question_id[]\" id=\"qID_7\" value=\"96\" class=\"watupro-question-id\"><input type=\"hidden\" id=\"answerType96\" class=\"answerTypeCnt7\" value=\"checkbox\"><input type=\"hidden\" id=\"watupro-required-question-96\"><!-- end question-content--><\/div><div class=\"question-choices watupro-choices-columns \" id=\"questionChoices96\"><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-96[]\" id=\"answer-id-430\" class=\"answer   answerof-96 \" value=\"430\"><label for=\"answer-id-430\" id=\"answer-label-430\" class=\" answer\"><span><p>Ratio of <sup>12<\/sup>C to<sup> 13<\/sup>C<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-96[]\" id=\"answer-id-429\" class=\"answer   answerof-96 \" value=\"429\"><label for=\"answer-id-429\" id=\"answer-label-429\" class=\" answer\"><span><p>Ratio of <sup>13<\/sup>C to <sup>12<\/sup>C<\/p><\/span><\/label><\/div><div class=\"watupro-question-choice  \" dir=\"auto\"><input type=\"checkbox\" name=\"answer-96[]\" id=\"answer-id-431\" class=\"answer   answerof-96 \" value=\"431\"><label for=\"answer-id-431\" id=\"answer-label-431\" class=\" answer\"><span><p>Ratio of <sup>14<\/sup>C to <sup>12<\/sup>C<\/p><\/span><\/label><\/div><!-- end question-choices--><\/div><!-- end questionWrap--><\/div><\/div><div style=\"display:none\" id=\"question-8\">\n\t<div class=\"question-content\">\n\t\t<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/sisu.ut.ee\/wp-content\/plugins\/watupro\/img\/loading.gif\" width=\"16\" height=\"16\" alt=\"Loading...\" title=\"Loading...\">\u00a0Loading...\t<\/div>\n<\/div>\n\n<br>\n\t\n\t\t\t<div class=\"watupro_buttons flex \" id=\"watuPROButtons13\">\n\t\t  <div id=\"prev-question\" style=\"display:none;\"><input type=\"button\" value=\"&lt; 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