分面浏览：发表日期 |
| 当前检索式 | ((ALL：chemical gradient)) |
| 限定条件 | 无 |
| 2024 2 | 2023 10 | 2022 34 |
| 2021 30 | 2020 49 | 2019 71 |
| 2018 84 | 2017 70 | 2016 93 |
| 2015 55 | 2014 90 | 2013 71 |
| 2012 98 | 2011 91 | 2010 188 |
| 2009 86 | 2008 58 | 2007 94 |
| 2006 55 | 2005 37 | 2004 25 |
| 2003 16 | 2002 14 | 2001 19 |
| 2000 6 | 1999 10 | 1998 8 |
| 1997 5 | 1996 2 | 1995 2 |
| 1993 1 | 1992 2 | 1991 2 |
| 1988 1 |
