Вперше розроблений пристрій для утримування голки (NTD) з сорбентом HKUST-1 (металоорганічний каркас на основі Cu), який призначений для відбору проб та аналізу бензену, толуену, етилбензену та ксилену (BTEX) в атмосферному повітрі. Синтезований за допомогою електрохімічного процесу адсорбент HKUST-1 розташований у голці 22 розміру. Для забезпечення різних концентрацій BTEX шприцева помпа підключена до скляної камери для впорскування сполук BTEX з певною швидкістю. Для оптимізації аналітичних параметрів, а саме об’єму проскоку, умов десорбції та умов відбору проб використано програмне забезпечення Design-еxpert (версія 7). Визначено, що оптимальні умови десорбції досягаються за 548 K протягом 6 хв, а найкращі умови відбору проб – за 309 K та 20% вологості. Визначено, що показники LOQ та LOD розробленого пристрою знаходяться в межах 0,52–1,41 та 0,16–0,5 мг/м3, відповідно, а повторюваність та відтворюваність методу становлять 5,5–13,2 та 5,3–12,3 %, відповідно. Встановлено, що NTD, які зберігаються в холодильнику (> 277 K), і за кімнатної температури (298 K), зберігають проби BTEX щонайменше протягом 10 та 6 днів відповідно. Показано, що NTD з сорбентом HKUST-1 може бути використаний як надійний та корисний метод для визначення BTEX у повітрі.
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